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ASUS ROG STRIX B550-F GAMING WIFI II vs GIGABYTE Z890 AORUS MASTER

A

Product A: ASUS

ROG STRIX B550-F GAMING WIFI II

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B

Product B: GIGABYTE

Z890 AORUS MASTER

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Only differences

AASUS ROG STRIX B550-F GAMING WIFI II

BGIGABYTE Z890 AORUS MASTER

General

3 of 9 differ

Series

ROG Strix2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The page sits in the ROG Strix line, under Gaming Motherboards.

AORUS1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Manual cover: Z890 AORUS MASTER. AORUS is the GIGABYTE brand line in the name.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

ROG STRIX B550-F GAMING WIFI II, 90MB19V0-M0EAY0, 90MB19V0-M0AAY03Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Manual cover: ROG STRIX B550-F GAMING WIFI II.6Retailer pageparadigit.ie/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-socket-am4-atx/21175029/productRead 15 October 2026Product number manufacturer: 90MB19V0-M0EAY0.7Retailer pagedirectcomputers.co.uk/fr/products/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-am4-atx-4-ddr4-hdmi-dp-ax-wi-fi-6e-2-5gb-lan-rgb-lighting-2x-m-2Read 15 October 2026SKU 90MB19V0-M0EAY0. 90MB19V0-M0AAY0 comes from the main team's pick list, which gives it as a model number of the same board. No page that could be opened lists it.8Retailer pagevoelkner.de/products/5760723/Asus-ROG-STRIX-B550-F-GAMING-WIFI-II-Mainboard-Sockel-PC-AMD-AM4-Formfaktor-Details-ATX-Mainboard-Chipsatz-AMD-B550.htmlRead 15 October 2026Part number 90MB19V0-M0EAY0.

Z890 AORUS MASTER1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Regulatory page: Model Number Z890 AORUS MASTER.

GTIN / EAN

4711081453314, 1955534533187Retailer pagedirectcomputers.co.uk/fr/products/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-am4-atx-4-ddr4-hdmi-dp-ax-wi-fi-6e-2-5gb-lan-rgb-lighting-2x-m-2Read 15 October 2026The page's product data lists gtin13 4711081453314 for SKU 90mb19v0-m0eay0.8Retailer pagevoelkner.de/products/5760723/Asus-ROG-STRIX-B550-F-GAMING-WIFI-II-Mainboard-Sockel-PC-AMD-AM4-Formfaktor-Details-ATX-Mainboard-Chipsatz-AMD-B550.htmlRead 15 October 2026The listing carries EAN 4711081453314 for part number 90MB19V0-M0EAY0 and the UPC 195553453318 in its keywords.9Retailer page888lots.com/item/asus-rog-strix-b550-f-gaming-wifi-ii-amd-socket-am4-atx-ddr4-888-b09lvqcmk4-usRead 15 October 2026The Amazon catalog record for ASIN B09LVQCMK4 lists UPC 195553453318 and EAN 4711081453314 for the same board. The two codes differ and may be regional barcodes. Both are stored. The UPC check digit is valid. It is stored with 12 digits, as the sources print it.

47193318649039Retailer pagescan.co.uk/products/gigabyte-z890-aorus-masterRead 14 October 2026GTIN 4719331864903.10Spec databaseik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/534a3775/670ec91d2893ec0018c0bba1/product-pdfRead 14 October 2026Retailer product sheet of 2024-10-15 (pimberly feed, linked from a Datek store listing): EAN 4719331864903.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

October 20244Press articletomshardware.com/pc-components/motherboards/new-motherboards-for-intel-arrow-lake-cpus-are-announcedRead 14 October 2026Article of 2024-10-11 lists the Z890 Aorus Master among the new Gigabyte Z890 boards announced with Intel Arrow Lake. Wccftech lists it for pre-order on 2024-10-10.

Status

Available5Retailer pagestartech.com.bd/asus-rog-strix-b550-f-gaming-wifi-ii-motherboardRead 15 October 2026The listing shows a price of 23,300 BDT on 2026-10-15.10Revieweneba.com/hubRead 15 October 2026Affiliate review of 2026-08-06 says the board is number 2 on Amazon's Computer Motherboards best-seller list at $137. No tests or measurements are used from it.

Available8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Listed since 2024-10-09 with offers from many shops on 2026-10-14.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

$599.993Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Priced at $599.99, the MSRP did go up from the Z790 Aorus Master X ($550). The US price excludes sales tax. Wccftech's Newegg pre-order listing of 2024-10-10 says the same.11Press articlewccftech.com/intel-z890-motherboards-available-pre-order-prices-starting-199-us-asus-asrock-gigabyte-msi/ampRead 14 October 2026Lists the Gigabyte Z890 Aorus Master at $599.99 in a Newegg pre-order listing, excl. sales tax. A retailer price, not a GIGABYTE statement. Tom's review gives the same MSRP.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Not available

Not available

SegmentiThe maker's own product category, e.g. ASUS ProArt is Creator. It is not assigned from price or features. Maker lines that are not gaming, creator or workstation lines, such as ASUS PRIME, MSI PRO and ASRock Pro, are mainstream.

Gaming2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026ROG Strix is ASUS's gaming board line, and the page is listed under Gaming Motherboards.

Gaming9Retailer pagescan.co.uk/products/gigabyte-z890-aorus-masterRead 14 October 2026The product photo shows the box line GAMING MOTHERBOARD under the name. The AORUS line is GIGABYTE's gaming brand. Geizhals files the board as Mainstream.

Board revisioniThe maker's revision name, e.g. rev. 1.1, for variant rows of revisions that keep the board's name and model number. Leave it out when the maker names no revision.

Not available

Not available

Platform

3 of 4 differ

CPU socketiSocket name without spaces, e.g. AM5 or LGA1851.

AM41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026AMD AM4 Socket for AMD Ryzen 5000 and 3000 Series and 5000 and 4000 G-Series Desktop Processors. The page refers to www.asus.com for the CPU support list.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: AMD AM4 Socket.

LGA18511Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026

ChipsetiChipset with its brand and without the word chipset, e.g. AMD B850, AMD X870E or Intel Z890. Same form as desktop PCs and as compatible chipsets on CPUs.

AMD B5501Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026AMD B550 chipset.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: AMD B550 Chipset.

Intel Z8901Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026

Supported processorsiProcessor series the maker lists for the board, one item per series in the chip maker's name. BIOS updates can add series later.

AMD Ryzen 5000 Series, AMD Ryzen 5000 G-Series, AMD Ryzen 4000 G-Series, AMD Ryzen 3000 Series1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026AMD Ryzen 5000 and 3000 Series Desktop Processors and AMD Ryzen 5000 and 4000 G-Series Processors. Written in the form used for the ASUS TUF GAMING B550-PLUS WIFI II in this catalog.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: AMD Ryzen 5000 and 3000 Series and 5000 and 4000 G-Series Desktop Processors. The manual refers to www.asus.com for the CPU support list. Read on 2026-10-15.

Intel Core Ultra (Series 2)1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: LGA1851 socket, Intel Core Ultra Processors. The manual refers to the maker's website for the CPU support list. Retail listings name Intel Core Ultra (Series 2). Read on 2026-10-14.

CPU overclockingiThe board allows multiplier overclocking of an unlocked CPU. Memory overclocking alone does not count.

Yes4Maker product pageamd.com/en/products/processors/chipsets/am4.htmlRead 15 October 2026AMD's AM4 chipset table lists overclocking enabled for the B550. This is the chip maker's page, not the board maker's.

Yes3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026The 18-phase VRM handles a Core Ultra 9 285K overclock. The board lists AI overclocking. The review itself did not overclock the CPU.

Board

1 of 5 differ

Form factoriThe maker's stated board standard. Other covers sizes such as XL-ATX or Mini-DTX.

ATX1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Form factor: ATX, 30.5cm x 24.4cm.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: ATX Form Factor, 12 inch x 9.6 inch (30.5 cm x 24.4 cm).

ATX1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026

Board dimensionsiSize of the board itself. Height runs along the rear I/O edge, as the board stands in a tower case. ATX is 244 mm wide and 305 mm high. Micro ATX is 244 mm high and up to 244 mm wide. A size with a cover that reaches past the board, as NZXT prints, is not used when the maker also states the board size.

Width244Height305mm(9.6 × 12 in)1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Form factor: ATX, 30.5cm x 24.4cm. The 244 mm side is the width, as for ATX.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 202612 inch x 9.6 inch (30.5 cm x 24.4 cm). The 244 mm side is the width.

Width244Height305mm(9.6 × 12 in)1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: ATX form factor, 30.5cm x 24.4cm.

PCB layersiCopper layers in the circuit board as published.

62Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026Six-layer PCB: the 6-layer PCB quickly dissipates heat around the VRM.

86Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 20268 layers.9Retailer pagescan.co.uk/products/gigabyte-z890-aorus-masterRead 14 October 20268-layer PCB, low-loss, 2X copper.

Back-connect designiPower, fan and front-panel connectors sit on the back of the board to hide the cables, e.g. ASUS BTF, MSI Project Zero or GIGABYTE Stealth. It needs a case made for it.

No3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The connector layout in chapter 1 shows the usual front-side power, fan and USB connectors. The board is not a back-connect design.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026The section 1-1 layout and 2-8 connector pages show the usual front-side connectors. The board is not a back-connect design.

RGB lighting on the boardiLEDs on the board itself. Headers for external lighting are counted under Internal connectors. True only when the maker's spec or feature list names lighting on the board. A single small LED that a reviewer sees does not count.

Yes2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The spec overview lists I/O Zone Aura lighting. The Aura text says the board has built-in Aura technology with full RGB control for embedded RGB LEDs and for strips on the onboard RGB headers.

Yes3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Heatsinks with the AORUS branding are illuminated by RGB LEDs and another RGB strip lights the bottom of the board.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026RGB Fusion 2.0 lighting on the aluminium cover over the rear I/O and under the chipset block.

Power delivery

5 of 6 differ

Power stage layoutiAs the maker publishes it, e.g. 18+2+2. The first number is the CPU core (Vcore) rail. Makers group the other rails differently, so compare the first number. Doubled or teamed stages are written as the maker prints them, such as MSI's 12+2+1 Duet Rail. A review's count of real phases goes in the source note.

12+22Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026Teamed power stages: 12+2 power stages combine high-side and low-side MOSFETs and drivers into a single package, with ASUS DIGI+ power control. No amp rating or controller part is named.

18+1+2+13Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Review text: 21 phases, 18 for Vcore. The maker's 18+1+2+1 comes from the retailer product sheet.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 202618 phases for VccCore in 9+9 parallel, 1 for VccGT and 2 for VccSA. This fits 18+1+2 and the maker's 18+1+2+1.10Spec databaseik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/534a3775/670ec91d2893ec0018c0bba1/product-pdfRead 14 October 2026Key features: Digital 18+1+2+1 Phases 110A SPS VRM with Tantalum Polymer Capacitor.

CPU core (Vcore) power stagesiPower stages on the Vcore rail. Makers call them phases or power stages. A doubled design has more stages than controller phases. Use the first number of the maker's layout, such as 14 for MSI's 14+2+1 Duet Rail. A review's different count goes in the source note.

122Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The first number of 12+2 is the Vcore rail. The page calls the stages teamed. They are counted as stages.

183Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 202618 Renesas R2209004 SPS MOSFETs rated at 110A each in a twin configuration.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 202618 Renesas R2209004 MOSFETs of 110A.

Vcore power stage ratingiCurrent rating of each Vcore power stage. Only a figure the maker or a copy of the maker's text states. A review's reading of the chip markings is not enough.

Not available

110A3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026The spec table says 18x 110A SPS MOSFETs for Vcore.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 202618 Renesas R2209004 of 110A. The same as the maker's 110A SPS.9Retailer pagescan.co.uk/products/gigabyte-z890-aorus-masterRead 14 October 202618+1+2 Digital Twin VRM with 110A Smart Power Stage modules, copying GIGABYTE's text.10Spec databaseik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/534a3775/670ec91d2893ec0018c0bba1/product-pdfRead 14 October 2026Digital 18+1+2+1 Phases 110A SPS VRM.

VRM controlleriPWM controller chip with maker, e.g. MPS MP2857. One name: the maker's when published, otherwise the one name a review uses. No parentheses. Other names go in the source note. Use the part number without the date code in the chip marking.

Not available

Renesas RAA2291303Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Power flows to the familiar Renesas RAA229130 PWM controller. Profesional Review agrees. Geizhals lists a second controller, RAA229134.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026Renesas RAA229130 digital controller.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026PWM controller row: RAA229130 (max 12 phases) and RAA229134 (max 4 phases). The first is stored, as Tom's and Profesional Review name it.

CPU power connectorsiEPS 12 V connectors for the CPU as pin counts, e.g. 8+8 pin, 8+4 pin or 8 pin.

8+4 pin1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Internal I/O: 1 x 8-pin +12V power connector and 1 x 4-pin +12V power connector, besides the 24-pin main power connector.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Internal I/O connectors: 1 x 24-pin Main Power, 1 x 8-pin +12V Power and 1 x 4-pin +12V Power connector.

8+8 pin1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 2 x 8-pin ATX 12V power connectors and the 24-pin ATX connector.

Extra slot power connectoriA PCIe or other power connector on the board that feeds the expansion slots. The 24-pin and CPU connectors do not count. A connector the maker ties only to a front USB-C header does not count.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The internal connector list has no extra slot power connector.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The internal connector list has no extra slot power connector.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026The section 2-2 internal connector list has no extra slot power connector.

Memory

5 of 6 differ

Memory type

DDR41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20264 x DIMM, DDR4, un-buffered memory.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: 4 x DIMM, Max. 128GB, DDR4.

DDR51Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 4 x DDR5 DIMM sockets, up to 256 GB (64 GB single DIMM), dual channel. The manual lists only 6400/5600 MT/s memory.

Memory slotsiDIMM slots on the board.

41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20264 x DIMM.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20264 x DIMM.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026

Max memoryiMaximum total capacity the maker states for the board. The maker's product page wins over an older manual, since a BIOS update can raise the value.

128GB1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Max. 128GB.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Max. 128GB.

256GB1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026

Max memory speed (overclocked)iHighest overclocked speed the maker lists for one module per channel, with the newest CPU family the board is sold for, e.g. Ryzen 9000 or Core Ultra 200S. Ryzen 8000 values are never used. The source note names the family and the other module setups. It is not the CPU's official speed. A JEDEC-only list such as 5600/4800 is not this value. When the maker lists a manual overclock and a memory profile speed, the higher one is stored. The maker's product page wins over an older manual, since a BIOS update can raise the value. A table that names the CPU family wins over a headline speed that names none.

5,100MT/s1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The list for Ryzen 5000 and 3000 Series runs from 2133 to 4800(O.C.) MHz. The list for Ryzen 5000 and 4000 G-Series runs from 2133 to 5100(O.C) MHz. The highest overclocked speed is stored, which is the ROG overview's headline DDR4 5100MHz+. No module setup is named. Ryzen 5000 is the newest family.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The spec overview lists DDR4 5100MHz+ with dual channel.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary: Ryzen 5000 and 3000 Series up to 4800(O.C.) MHz, and Ryzen 5000 and 4000 G-Series up to 5100(O.C) MHz. The higher figure is stored.

9,500MT/s3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Spec table from the Gigabyte website: DDR5-9500+(OC), 256GB. Text: speeds up to DDR5-9500(OC). The review ran DDR5-8200 kits. The maker lists no module setup per speed. Core Ultra 200S is the only CPU family for this board.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 20269500 MHz with XMP 3.0. The review tested 8200 MHz.7Reviewgeeknetic.es/Review/2973/Gigabyte-Z890-AORUS-MASTER-Review.htmlRead 14 October 2026Review of 2024-11-27: up to 9500 MT/s with overclocking and up to 256 GB of DDR5.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Data rate: DDR5-5600 UDIMM, DDR5-6400 CUDIMM (Core Ultra 200S), max DDR5-9500 OC.10Spec databaseik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/534a3775/670ec91d2893ec0018c0bba1/product-pdfRead 14 October 2026Key features: up to 9500MHz DDR5 (OC). Supported memory clock speeds list ends 8600 and 9500, maximum 9500 MHz.

ECC memoryiThe board runs unbuffered ECC modules with ECC active. A board that runs ECC modules in non-ECC mode does not count. DDR5 on-die ECC does not count. A maker list of ECC and non-ECC unbuffered memory with no non-ECC mode qualifier counts as true, as on ASUS and ASRock AM5 boards. A note that ECC mode depends on the CPU, as ASUS writes for AM4 boards, still counts as true.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026ECC memory (ECC mode) support varies by CPU. The maker lists no non-ECC mode qualifier for the board, so it counts as ECC.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026ECC memory (ECC mode) support varies by CPU.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: ECC unbuffered DIMM 1Rx8/2Rx8 modules operate in non-ECC mode.

CUDIMM supportiThe board runs clocked unbuffered DIMMs (CUDIMM) with the clock driver active. Clock driver bypass mode only does not count. A plain "Supports CUDIMM" with no bypass limit, as ASRock and ASUS write it, counts as true.

Not available

Yes3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026The review ran Kingston and G.Skill CUDIMM kits up to DDR5-8200 without trouble, with the 285K. It does not state the clock driver mode.7Reviewgeeknetic.es/Review/2973/Gigabyte-Z890-AORUS-MASTER-Review.htmlRead 14 October 2026The review says CUDIMM is supported.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Data rate row names DDR5-6400 CUDIMM for Core Ultra 200S.

Expansion slots

3 of 3 differ

Expansion slotsiPhysical card slots. Storage M.2 slots are listed under Storage. The M.2 slot of a pre-installed Wi-Fi module is not listed. A full-length slot wired for x4 is PCIe x16 with 4 lanes.

AASUS ROG STRIX B550-F GAMING WIFI II

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	4	CPU	1
PCIe x16	4	3	Chipset	1
PCIe x1	1	3	Chipset	3

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026CPU: 1 x PCIe 4.0 x16 SafeSlot (supports x16 mode). B550 chipset: 1 x PCIe 3.0 x16 slot (supports x4 mode) and 3 x PCIe 3.0 x1 slots. The x16 slot shares bandwidth with the three x1 slots. Per the manual, the x1 slots are disabled when the x16 slot runs at x4, and the x16 slot runs at x1 when an x1 slot is used. The M.2 slots are in the Storage row.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary and the shared bandwidth table: PCIEX16_2 shares bandwidth with PCIEX1_1, PCIEX1_2 and PCIEX1_3. When it runs x4, the three x1 slots are disabled.

BGIGABYTE Z890 AORUS MASTER

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	5	CPU	1
PCIe x16	4	4	Chipset	1
PCIe x16	1	4	Chipset	1

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: PCIEX16 is from the CPU, PCIe 5.0 at x16, and drops to x8 when a device is in M2D_CPU. PCIEX4 and PCIEX1 are x16-length slots on the chipset, PCIe 4.0 running at x4 and x1. Scan UK and Geizhals say the x1 slot is PCIe 3.0. The manual is stored. Tom's confirms the lane sharing.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Three full-length PCIe slots. The top slot is the CPU PCIe 5.0 x16. The two below run through the chipset at PCIe 4.0 x4 and x1. The top slot drops to x8 when M2D_CPU is populated.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Lists the third slot as PCIe 3.0 x16 at x1. The manual says PCIe 4.0 and is stored.

Full-length PCIe slotsiCounts full-length slots, whatever their lane count.

2=CalculatedFrom Expansion slots

3=CalculatedFrom Expansion slots

Fastest PCIe x16 slot generationiHighest PCIe generation of a full-length slot. This is normally the graphics card slot.

4=CalculatedFrom Expansion slots

5=CalculatedFrom Expansion slots

Storage

4 of 4 differ

M.2 storage slotsiOne row per M key storage slot on the board, front or back. Slots on an included add-in card are not listed. Values are with the CPU family that gives the board its full connectivity. A slot listed for 25110 counts as M.2 22110. A slot listed for 2260 counts as M.2 2280.

AASUS ROG STRIX B550-F GAMING WIFI II

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink	Shares lanes with
M.2_1	4	4	CPU	M.2 22110	Yes	Yes	Not available
M.2_2	3	4	Chipset	M.2 22110	Yes	Yes	SATA6G_5 and SATA6G_6 are disabled when M.2_2 is used

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026CPU: M.2_1 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 4.0 x4 and SATA modes). B550 chipset: M.2_2 slot (Key M), type 2242/2260/2280/22110 (supports PCIe 3.0 x4 and SATA modes). When M.2_2 is populated, SATA6G_5/6 ports are disabled. The Thermal Solution row lists an M.2 heatsink. The ROG overview says dual M.2 heatsinks, and the maker's product photo shows a heatsink over each slot.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The overview lists dual M.2 heatsinks and says both M.2 slots take up to type 22110.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Specifications summary and item 6 of the board overview: M.2_1 supports PCIe 4.0 x4 and SATA modes, M.2_2 supports PCIe 3.0 x4 and SATA modes, both for type 2242/2260/2280/22110. When M.2_2 is populated, SATA6G_5/6 are disabled. The installation section uses screws, with a bundled M.2 SSD screw package, so no screwless latch is listed.

BGIGABYTE Z890 AORUS MASTER

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink	Shares lanes with
M2A_CPU	5	4	CPU	M.2 22110	No	Yes	Not available
M2B_CPU	4	4	CPU	M.2 22110	No	Yes	Not available
M2D_CPU	5	4	CPU	M.2 22110	No	Yes	The PCIe x16 slot runs at x8
M2P_SB	4	4	Chipset	M.2 2280	No	Yes	Not available
M2M_SB	4	4	Chipset	M.2 2280	Yes	Yes	Not available

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2 and 2-8. M2A_CPU takes 25110/22110/2580/2280, PCIe 5.0 x4/x2. M2B_CPU takes 22110/2280, PCIe 4.0 x4/x2, from the CPU. M2D_CPU takes 22110/2280, PCIe 5.0 x4/x2, and shares bandwidth with PCIEX16. M2P_SB takes 2280, PCIe 4.0 x4/x2. M2M_SB takes 2280, PCIe 4.0 x4/x2 and SATA. The 2-8 table marks M.2 SATA SSDs as supported on M2M_SB only. 22110 is stored for 25110 and 22110 slots. The 2-8 steps remove a motherboard heatsink for every slot.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Spec table: two PCIe 5.0 x4 sockets up to 110 mm, one PCIe 4.0 x4 up to 110 mm, one PCIe 4.0 x4 up to 80 mm and one PCIe 4.0 x4 PCIe/SATA up to 80 mm. Text: five M.2 sockets under the heatsinks, each with the M.2 EZ Latch. M2M_SB takes SATA as well.

M.2 slots

2=CalculatedFrom M.2 storage slots

5=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

0=CalculatedFrom M.2 storage slots

2=CalculatedFrom M.2 storage slots

SATA portsiSATA 6Gb/s connectors on the board. SlimSAS connectors and M.2 slots that take SATA drives do not count.

61Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20266 x SATA 6Gb/s ports. Supports RAID 0, 1, 10.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20266 x SATA 6Gb/s ports.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 4 x SATA 6Gb/s connectors.

Rear ports

5 of 5 differ

Rear portsiPhysical connectors on the rear I/O panel. Wi-Fi antenna connectors and buttons are not ports. 3.5 mm audio counts analog jacks of any role. A video input, such as the DisplayPort In of a Thunderbolt board, is Other.

AASUS ROG STRIX B550-F GAMING WIFI II

Type	Version	Count	Max link rate (Gbps)
USB-C	USB 3.2 Gen 2	1	10
USB-A	USB 3.2 Gen 2	1	10
USB-A	USB 3.2 Gen 1	4	5
USB-A	USB 2.0	2	0.48
DisplayPort	DisplayPort 1.2	1	Not available
HDMI	HDMI 2.1	1	Not available
Ethernet (RJ45)	Not available	1	2.5
3.5 mm audio	Not available	5	Not available
Optical S/PDIF	Not available	1	Not available

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Back panel: 2 x USB 3.2 Gen 2 ports (1 Type-A and 1 USB Type-C), 4 x USB 3.2 Gen 1 Type-A, 2 x USB 2.0, 1 x Wi-Fi module, 1 x DisplayPort (1.2 in the Graphics row), 1 x HDMI, 1 x Intel I225-V 2.5G Ethernet, 1 x optical S/PDIF out, 5 x audio jacks and 1 x BIOS FlashBack button. The page writes HDMI without a version. The manual writes HDMI 2.1. Graphics specifications may vary between CPU types. No USB power output or video mode is stated for the Type-C port, so dp_alt_mode is left out.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Back Panel I/O Ports as on the spec page. The Graphics row says 1 x DisplayPort 1.2 and 1 x HDMI 2.1, and graphics specifications may vary between CPU types.5Retailer pagestartech.com.bd/asus-rog-strix-b550-f-gaming-wifi-ii-motherboardRead 15 October 2026The page copies ASUS's spec, with HDMI 2.1 and DisplayPort 1.2 in the Graphics row.6Retailer pageparadigit.ie/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-socket-am4-atx/21175029/productRead 15 October 2026HDMI version 2.1 and DisplayPort version 1.2.

BGIGABYTE Z890 AORUS MASTER

Type	Version	Count	Max link rate (Gbps)	Thunderbolt or USB4	DP Alt Mode
USB-C	USB4	2	40	Thunderbolt 4	Yes
USB-A	USB 3.2 Gen 2	6	10	Not available	Not available
USB-A	USB 3.2 Gen 1	4	5	Not available	Not available
USB-A	USB 2.0	2	0.48	Not available	Not available
Ethernet (RJ45)	Not available	1	10	Not available	Not available
3.5 mm audio	Not available	2	Not available	Not available	Not available
Optical S/PDIF	Not available	1	Not available	Not available	Not available

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2 and 2-6: 2 Intel Thunderbolt 4 connectors (USB4 Type-C, also USB 3.2 Gen 2x2 compatible, DisplayPort and Thunderbolt video), 6 USB 3.2 Gen 2 Type-A (red), 4 USB 3.2 Gen 1, 2 USB 2.0, 1 RJ-45 up to 10 Gbps, 2 audio jacks and 1 optical S/PDIF out. The USB 3.2 Gen 1 ports are not named Type-A in the manual. Tom's lists them with the Type-A ports and the Thunderbolt ports are the only Type-C on the panel, so they are stored as Type-A. Thunderbolt is stored as 40 Gbps (Tom's). The Q-Flash Plus button and two antenna connectors are not ports. HDMI is the internal F_HDMI header.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026The rear panel has 14 USB ports: two Thunderbolt 4 (40 Gbps) Type-C ports that also give video, six USB 3.2 Gen 2 (10 Gbps, all Type-A), four USB 3.2 Gen 1 (5 Gbps) and two USB 2.0. One 10 GbE port, two analog jacks and S/PDIF. The text says 20 Gbps for the Gen 2 ports, which is a typo, since the spec table and the maker say 10.

Rear USB ports

8=CalculatedFrom Rear ports

14=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

1=CalculatedFrom Rear ports

2=CalculatedFrom Rear ports

Fastest rear USB port

10Gbps=CalculatedFrom Rear ports

40Gbps=CalculatedFrom Rear ports

ThunderboltiThunderbolt on the rear panel. A header for an add-in card does not count.

Not available

Yes=CalculatedFrom Rear ports

Internal connectors

5 of 5 differ

Internal USB headersiHeaders for front-panel USB ports. The header count may be left out when the maker states only the front ports served.

AASUS ROG STRIX B550-F GAMING WIFI II

Header	Max data rate (Gbps)	Headers	Front ports served
USB 3 header (19-pin)	5	1	2
USB 2.0 header (9-pin)	0.48	2	4

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Internal I/O: 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports and 2 x USB 2.0 headers support 4 additional USB 2.0 ports. No front USB-C header is listed.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20261 x USB 3.2 Gen 1 header for 2 ports and 2 x USB 2.0 headers for 4 ports.

BGIGABYTE Z890 AORUS MASTER

Header	Max data rate (Gbps)	Headers	Front ports served
USB-C header	20	1	1
USB 3 header (19-pin)	5	2	4
USB 2.0 header (9-pin)	0.48	2	4

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2 and 2-8: USB Type-C header with USB 3.2 Gen 2x2 (20 Gbps), 2 USB 3.2 Gen 1 headers (4 ports) and 2 USB 2.0/1.1 headers (4 ports). The manual gives no power output for the Type-C header.

Front USB-C header speed

Not available

20Gbps=CalculatedFrom Internal USB headers

Fan headersiAll fan and pump headers on the board, including CPU, CPU optional, AIO pump and chassis fan headers. Combination connectors that carry fan power together with other lines, such as MSI EZ Conn, do not count. A header that drives several fans, such as GIGABYTE 3_FANS, counts once. Headers on a hub that ships with the board and plugs into it, such as MSI's EZ CONTROL HUB, count. The source note splits board and hub.

61Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20261 x 4-pin AIO_Pump header, 1 x 4-pin CPU fan header, 1 x 4-pin CPU_OPT fan header and 3 x 4-pin chassis fan headers.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The fan header table lists CPU_FAN, CPU_OPT, CHA_FAN1 to 3 and AIO_PUMP, each rated 1 A (12 W).

101Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 1 CPU fan, 1 CPU fan/pump, 4 system fan and 4 system fan/pump headers. Tom's also counts 10.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Spec table: 10 four-pin fan and pump headers, each with 2A/24W output.

ARGB headersi3-pin 5 V addressable RGB headers. Combination connectors do not count. Headers on a hub that ships with the board and plugs into it, such as MSI's EZ CONTROL HUB, count. The source note splits board and hub.

11Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20261 x Addressable Gen 2 header (3-pin).3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20261 x Addressable Gen 2 header.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 4 x addressable RGB Gen2 LED strip headers.

RGB headersi4-pin 12 V RGB headers. Headers on a hub that ships with the board and plugs into it, such as MSI's EZ CONTROL HUB, count. The source note splits board and hub.

21Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20262 x AURA RGB headers (4-pin).3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20262 x AURA RGB headers.

11Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 1 x RGB LED strip header.

Networking

6 of 9 differ

Ethernet controllersiOne item per Ethernet chip, as maker plus chip family without suffix letters, e.g. Realtek RTL8126 or Realtek RTL8125. Suffixes and revisions go in the source note. Leave it empty when no maker document or review names the chip. A Killer chip is written with Intel as its maker, such as Intel Killer E3100G.

Intel I2251Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20261 x Intel I225-V 2.5Gb Ethernet with ASUS LANGuard. The suffix V is left out.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20261 x Intel I225-V 2.5Gb Ethernet.6Retailer pageparadigit.ie/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-socket-am4-atx/21175029/productRead 15 October 2026LAN controller: Intel I225-V.

Marvell AQC1131Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: Marvell AQtion AQC113C 10GbE LAN chip. The suffix C is left out. Geizhals reads AQC113CS. AQtion is the family name and is left out, as on the other boards.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026Marvell AQtion AQC113C, 10 GbE.

Ethernet ports

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Ethernet speediFastest Ethernet port.

2.5Gbps=CalculatedFrom Rear ports

10Gbps=CalculatedFrom Rear ports

Wi-Fi includediA Wi-Fi module comes installed. A board sold with and without Wi-Fi is two products.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The back panel lists a Wi-Fi module and the Wireless row lists Wi-Fi 6E with Bluetooth v5.2.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Wireless and Bluetooth: Wi-Fi 6E, 2x2, and 1 x ASUS Wi-Fi Module on the back panel.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2 and the block diagram: an M2_WIFI socket carries the Wi-Fi module.

Wi-Fi standard

Wi-Fi 6E1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 20262x2 Wi-Fi 6E (802.11 a/b/g/n/ac/ax).3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 20262x2 Wi-Fi 6E (802.11 a/b/g/n/ac/ax).

Wi-Fi 71Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 802.11a, b, g, n, ac, ax and be.

Wi-Fi bandsiBands the installed module supports.

2.4 GHz, 5 GHz, 6 GHz1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Supports 2.4/5/6GHz frequency band. The 6 GHz regulation may vary between countries and the function is ready in Windows 11 or later.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Supports 2.4/5/6GHz frequency band.

2.4 GHz, 5 GHz, 6 GHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: 2.4/5/6 GHz carrier frequency bands. The 6 GHz band depends on country regulations.

Max Wi-Fi channel widthiWidest channel the installed module supports, e.g. 320 or 160. It follows the Wi-Fi module, so a board revision can change it.

Not available

320MHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: support for the 11be 320MHz wireless standard.

Wi-Fi moduleiChip as published. A board revision can change the chip. One name: the maker's when published, otherwise the one name a review uses. No parentheses. Other names go in the source note. Use the chip's part number with its maker when any source gives it, such as Qualcomm QCNCM865 for a module also written NCM865. A platform name such as FastConnect 7800 is used only when no part number is published.

Not available

Intel BE2001Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: Intel Wi-Fi 7 BE200NGW. The suffix NGW is left out.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026Intel Wi-Fi 7 BE200 with Bluetooth 5.4.7Reviewgeeknetic.es/Review/2973/Gigabyte-Z890-AORUS-MASTER-Review.htmlRead 14 October 2026Intel Wi-Fi 7 BE200NGW, 2x2, MLO and 320 MHz channels on 6 GHz, Bluetooth 5.4.

BluetoothiVersion of the Bluetooth radio on the Wi-Fi module.

5.21Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Bluetooth v5.2.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Bluetooth v5.2.6Retailer pageparadigit.ie/asus-rog-strix-b550-f-gaming-wifi-ii-amd-b550-socket-am4-atx/21175029/productRead 15 October 2026Bluetooth version 5.2.

5.41Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: Bluetooth 5.4.

Audio

2 of 2 differ

Audio codeciMaker and model, e.g. Realtek ALC4080. A board revision can change the codec.

SupremeFX S1220A1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026ROG SupremeFX 7.1-Channel High Definition Audio CODEC S1220A, with 120 dB SNR playback and 113 dB SNR recording. The maker names no chip maker. Stored as the maker writes it.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026ROG SupremeFX 7.1-Channel High Definition Audio CODEC S1220A.

Realtek ALC12201Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: Realtek ALC1220 CODEC.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026Realtek ALC1220 codec with an ESS ES9118 DAC, WIMA capacitors and DTS:X Ultra.

DAC chipiA separate DAC chip next to the codec, e.g. ESS ES9219. Maker plus part number as the maker writes it, with suffix letters, e.g. ESS ES9219Q. A marketing name that stands for a part number is written as the part number, so ESS SABRE9219 is ESS ES9219 and the maker wording goes in the source note. Leave it empty on boards with only a codec.

Not available

ESS ES91181Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: ESS ES9118 DAC chip. Tom's writes ESS SABRE9118.6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026ESS ES9118 DAC.

Features

4 of 7 differ

BIOS flashbackiA button that updates the BIOS from a USB drive without a CPU or memory installed. Maker names include BIOS FlashBack, Flash BIOS Button and Q-Flash Plus.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Back panel: 1 x BIOS FlashBack button. Special features: BIOS FlashBack button and LED.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Back panel I/O lists 1 x BIOS FlashBack button.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-6: Q-Flash Plus button and a red Q-Flash Plus USB port on the back panel. It updates the BIOS with the system off.

Clear CMOS button (rear)iA button on the rear panel that resets the BIOS settings. A jumper or header does not count. A board whose only clear CMOS button sits on the board itself is false.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Internal I/O: 1 x Clear CMOS header. The back panel list has only the BIOS FlashBack button.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026The back panel list has no clear CMOS button. The internal list has a Clear CMOS header.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2 and 2-6: Clear CMOS button on the back panel. A Clear CMOS jumper also exists.

POST code displayiA two-digit display that shows boot codes, e.g. ASUS Q-Code or ASRock Dr. Debug. Single status LEDs do not count. Taken from the maker's spec or manual only. A review spec table is not enough.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Q-Design lists Q-LED with four status LEDs (DRAM, CPU, VGA and boot device). No two-digit display is listed.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026ASUS Q-LED with four LEDs (DRAM, CPU, VGA, boot device). No Q-Code display.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 1-1 layout shows DB_PORT, with the note that debug code information is in the Debug LED Codes pages (section 5-2), which list two-character codes. Section 2-7 also lists four status LEDs (CPU, DRAM, VGA, BOOT). Tom's lists a two-character Debug port, and the Scan UK photo shows the two-digit display near the top right corner.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Spec table: Debug Port (2-character) and Debug LEDs. Text: a two-character Debug port and a four-LED POST debugger.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Features: diagnostic LED with segment display, so a code display.

Power button on the boardiA power or start button on the board itself, for use outside a case. A button with another label counts when the maker says it can turn the PC on, such as GIGABYTE's quick button labelled RESET. A button on the rear I/O panel counts. A button on a module that ships fitted to the board, such as MSI's EZ BRIDGE, counts.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026The internal connector and special feature lists have no onboard power or reset button.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2 and 2-7: power button and reset button on the board.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Spec table: one power button and one reset button.

Dual BIOSiTwo BIOS chips, so the board can start from the second chip after a failed update. Two flash chips alone do not count.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026BIOS: 256 Mb Flash ROM, UEFI AMI BIOS. Dual BIOS is not stated.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026256 Mb Flash ROM. Dual BIOS is not stated.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-2: BIOS is 1 x 256 Mbit flash. Dual BIOS is not stated. The layout shows one BIOS chip, M_BIOS.

Pre-installed I/O shieldiThe rear I/O shield is fixed to the board.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026ASUS EZ DIY lists a pre-mounted I/O shield.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026The patented I/O shield comes pre-mounted.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Special features, ASUS EZ DIY: Pre-mounted I/O shield.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026The section 1-3 box contents list has no loose I/O shield. Geizhals lists an integrated I/O shield and the Scan UK photo shows the shield on the board.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Features: integrierte I/O-Blende.

Tool-free featuresiM.2 latch holds a drive without a screw. M.2 heatsink comes off without a tool. PCIe slot release is a button or lever that frees the graphics card. Push-on antenna connector fits the Wi-Fi antenna without screwing.

Not available

Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release, Push-on antenna connector1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 2-8: M.2 EZ-Latch Plus (screwless M.2 SSD clip) and M.2 EZ-Latch Click (screwless heatsink). The PCIe EZ-Latch Plus button and the WIFI EZ-Plug are from Tom's and Geizhals. Tom's lists a Wi-Fi antenna with EZ-plug in the box.3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026EZ Latch on all five M.2 sockets, a PCIe EZ Latch button on the top slot and an antenna with EZ-plug in the box.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Antenna connectors are listed as Quick Connect.

Measured

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VRM temperature under CPU loadiHighest VRM temperature a reviewer measured during a sustained all-core CPU stress test at stock settings. Compare only results from the same reviewer and CPU. The reviewer's probe reading when given, otherwise the board sensor. The sensor and the CPU package power during the test go in the source note.

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55°C6Reviewprofesionalreview.com/2024/10/24/z890-aorus-master-review/ampRead 14 October 2026Core Ultra 9 285K at stock (PL1=PL2=250 W, 245 W peak), Corsair iCUE H150i ELITE LCD cooler, CPU stress test. HWiNFO board VRM sensor read 55 C at full stock load and a FLIR One camera read 55 C on the outside of the VRM. The sensor reading is stored. Stress test tool, duration and ambient temperature are not stated. Tom's writes just over 40 C on its sensors with the CPU at about 201 W.

Power draw idleiWhole test system at the wall at idle, measured by a reviewer. Compare only results from the same reviewer and CPU. A chart of CPU and board power without a wall meter does not count.

Not available

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Power draw CPU stressiWhole test system at the wall at the peak of a CPU stress test, measured by a reviewer. The graphics card is not loaded. Compare only results from the same reviewer and CPU. A chart of CPU and board power without a wall meter does not count.

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291W5Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-review/3Read 14 October 2026Power Consumption / VRM Temperatures page. Core Ultra 9 285K, Arctic Liquid Freezer II 420, RTX 4080, AIDA64 System Stability Test with Stress CPU, FPU, Cache and Memory, stock settings, performance profile at 250 W. The system peaked at 291 W, read at the wall with a Kill-A-Watt meter for the entire PC without the monitor. The CPU itself peaked at about 201 W. No idle figure is given in the text.

In the box

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In the boxiItems as the maker lists them.

1 x Addressable RGB extension cable, 4 x SATA 6Gb/s cables, 1 x ASUS Wi-Fi moving antennas, 1 x Cable ties pack, 1 x M.2 Rubber Package, 1 x M.2 SSD screw package, 1 x ROG key chain, 1 x ROG Strix stickers, 1 x ROG Strix thank you card, 1 x Support DVD, 1 x User manual1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026Accessories list as published.3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026Package contents, chapter 1.

Z890 AORUS MASTER motherboard, User's Manual, Quick Installation Guide, One antenna, DDR Wind Blade, Two SATA cables, One noise detection cable, Two thermistor cables, One G Connector, Two M.2 thermal pads, Three packs of M.2 thick/thin rubber pads1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026Section 1-3. The list is for reference and the manual says the actual items depend on the package.

Links

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Product page

rog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-modelRead 15 October 2026ASUS ROG product page for the ROG STRIX B550-F GAMING WIFI II.

www.gigabyte.com/Motherboard/Z890-AORUS-MASTER2Maker product pagegigabyte.com/Motherboard/Z890-AORUS-MASTERRead 14 October 2026The URL comes from the job evidence and search results. gigabyte.com blocks agents, so the page was not opened. Specifications were read from the user's manual, a retailer product sheet and reviews that copy the maker's spec table.

Spec sheet

rog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/spec1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b550-f-gaming-wifi-ii-model/specRead 15 October 2026ASUS ROG Tech Specs tab for the ROG STRIX B550-F GAMING WIFI II. Read on 2026-10-15.

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Manual

doc.moyo.ua/13113185_1666793471.pdf3Owner's manualdoc.moyo.ua/13113185_1666793471.pdfRead 15 October 2026ASUS user manual E18592, First Edition, August 2021, 72 pages, in a copy on doc.moyo.ua. ASUS's own download link was not found. The copy matches the ASUS spec page.

www.trovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdf1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_z890_master.pdfRead 14 October 2026GIGABYTE User's Manual Rev. 1004 for Z890 AORUS MASTER (48 pages), hosted by trovaprezzi.it. The maker's own manual page was not readable.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

3years5Retailer pagestartech.com.bd/asus-rog-strix-b550-f-gaming-wifi-ii-motherboardRead 15 October 2026Warranty information: 3 years manufacturing warranty. The market is Bangladesh.

3years3Reviewtomshardware.com/pc-components/motherboards/gigabyte-z890-aorus-master-motherboard-reviewRead 14 October 2026Spec table: 3 Years. This is a US reviewer and the market is not named. Scan UK states 24 months.8Spec databasegeizhals.de/gigabyte-z890-aorus-master-a3327967.htmlRead 14 October 2026Garantie 3 Jahre.9Retailer pagescan.co.uk/products/gigabyte-z890-aorus-masterRead 14 October 202624 months, direct, for the UK market. Tom's and Geizhals say 3 years.10Spec databaseik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/534a3775/670ec91d2893ec0018c0bba1/product-pdfRead 14 October 2026Warranty period 3 year(s).

Both are also in the API. Back to all motherboards.