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ASUS ROG STRIX B550-F GAMING WIFI II vs GIGABYTE B550M K

A

Product A: ASUS

ROG STRIX B550-F GAMING WIFI II

57 of 78 known

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B

Product B: GIGABYTE

B550M K

49 of 78 known

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Only differences

AASUS ROG STRIX B550-F GAMING WIFI II

BGIGABYTE B550M K

General

2 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.

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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.

B550M K1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The manual cover names the model B550M K. The product page lists revisions 1.0, 1.1 and 1.2 under the same name.

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.

4719331852764, 8895230360064Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026Product data sheet for the part B550M K, publication date 24-SEP-2024, barcodes 4719331852764 and 889523036006. Amazon and BuildCores list the same UPC, and several retailers list the same EAN.5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026Item details: UPC 889523036006.8Spec databasebuildcores.com/products/Motherboard/x8q2g3bog/Gigabyte-B550M-K-AM4-DDR4-Micro-ATXRead 15 October 2026UPC 889523036006 and EAN 4719331852764. BuildCores also lists EANs 4719331880811 and 4719331805654, which no other source confirms, so they are not stored.

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

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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.

Available5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026The page showed the board In Stock on 2026-10-15. Best Sellers Rank was 18 in Computer Motherboards.

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

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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

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

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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

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

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ColoursiThe maker's own colour names

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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.

Mainstream4Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026The data sheet title names no gaming or creator use. Its tagline reads AMD B550 Ultra Durable. The board is not in a GIGABYTE AORUS, GAMING or EAGLE line, so it is stored 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.

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Platform

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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.

AM41Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: AMD Socket AM4.

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.

AMD B5501Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: Chipset AMD B550.

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.

AMD Ryzen 5000 Series, AMD Ryzen 5000 G-Series, AMD Ryzen 4000 G-Series, AMD Ryzen 3000 Series1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 lists AMD Ryzen 5000 G-Series, 5000 Series, 4000 G-Series and 3000 Series Processors and refers to GIGABYTE's website for the latest CPU support list. The Rev. 1102 manual adds Ryzen 3000 G-Series, which LDLC says rev. 1.0 boards do not support (3200G and 3400G), so only the four series both manuals list are stored. The list was read on 2026-10-15.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026GIGABYTE User's Manual Rev. 1102, copyright 2026, for B550M K WIFI6E and B550M K, linked from a Russian retailer's page for rev. 1.2. Section 2-2 lists Ryzen 5000 G-Series, 5000, 4000 G-Series, 3000 G-Series and 3000 Series. The four series that rev. 1.0 also lists are stored.

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.

Yes6Maker product pageamd.com/en/products/processors/chipsets/am4.htmlRead 15 October 2026AMD's AM4 chipset specifications table, B550 row: Overclocking Enabled: Yes. This is the chipset maker's feature, not a board spec. The board's BIOS options were not checked.

Board

4 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).

Micro-ATX1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: Micro ATX Form Factor, 24.4cm x 24.4cm.

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.

Width244Height244mm(9.6 × 9.6 in)1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 24.4cm x 24.4cm, stored as 244 mm by 244 mm.

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.

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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_b550m_k_1_0.pdfRead 15 October 2026The section 1-1 layout and the section 2-7 connector list show the usual front-side power, fan and USB connectors.

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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The complete Specifications list names no lighting on the board and no LED feature. The internal connector list has no RGB or ARGB header.

Power delivery

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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.

3+35Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026The GIGABYTE-branded listing says Digital 3+3 VRM Design in its bullets and 3+3 Power Phase in its title. GIGABYTE's own specification page and manuals give no phase count. A 4+3 count in an unreliable review and a 5+3 count on one retailer page disagree. The board photo on this page shows six output chokes beside the CPU socket, so the phases may be doubled and no Vcore stage count is stored.

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.

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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.

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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.

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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 pin1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 Internal Connectors: 1 x 24-pin ATX main power connector and 1 x 8-pin ATX 12V power 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_b550m_k_1_0.pdfRead 15 October 2026The complete internal connector list has only the 24-pin and 8-pin ATX 12V connectors, so there is no extra slot power connector.

Memory

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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.

DDR41Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 4 x DDR4 DIMM sockets.

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_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 4 x DDR4 DIMM sockets.

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.

128GB1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: up to 128 GB (32 GB single DIMM capacity) of system memory.

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.

4,733MT/s3Maker product pagegigabyte.com/Motherboard/B550M-K-rev-10/spRead 15 October 2026The search excerpt of the specification page lists DDR4 4733 (O.C.) as the top memory speed and 3200, 2933, 2667, 2400 and 2133 for plain modules. Ryzen 5000 is the newest processor family the board lists. The manuals list only the plain speeds up to 3200, so the product page is used, as the field rule says.4Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026Supported memory clock speed (max) 4733 MHz, with the list 2133 up to 4733 MHz. It is the data rate in MT/s.5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026The listing's GIGABYTE infographic says DDR4 Overclocking up to 4733 MT/s.7Spec databasegeizhals.at/gigabyte-b550m-k-a2901610.htmlRead 15 October 2026RAM-Datenrate row: DDR4-3200 for Ryzen 3000 to 5000 and max. DDR4-4733 OC.

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.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 lists support for ECC Un-buffered DIMM 1Rx8/2Rx8 and non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 modules with no non-ECC mode qualifier. GIGABYTE's product page says ECC support varies by CPU, which still counts as true.

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.

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Expansion slots

2 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 B550M K

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

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 with Ryzen 5000 and 3000: 1 x PCI Express x16 slot from the CPU at PCIe 4.0 x16 (PCIe 3.0 x16 with Ryzen 5000 G-Series and 4000 G-Series) and 1 x PCI Express x1 slot from the chipset at PCIe 3.0 x1.

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

2=CalculatedFrom Expansion slots

1=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

4=CalculatedFrom Expansion slots

Storage

2 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 B550M K

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M2A_CPU	4	4	CPU	M.2 2280	Yes	No
M2B_SB	3	2	Chipset	M.2 2280	No	No

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 with Ryzen 5000 and 3000. M2A_CPU is from the CPU, type 2280, SATA and PCIe 4.0 x4/x2 SSDs (PCIe 3.0 with 5000 G-Series and 4000 G-Series). M2B_SB is from the chipset, type 2280, PCIe 3.0 x2 SSDs, with no SATA mode listed. Section 2-7 item 6 shows both slots held by a clip and no heatsink. No lane sharing is stated.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026Section 2-2 gives the same M2A_CPU and M2B_SB slots, types and speeds as the Rev. 1001 manual.

M.2 slots

2=CalculatedFrom M.2 storage slots

2=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

0=CalculatedFrom M.2 storage slots

0=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_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 4 x SATA 6Gb/s connectors from the chipset.

Rear ports

3 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 B550M K

Type	Version	Count	Max link rate (Gbps)
USB-A	USB 3.2 Gen 1	4	5
USB-A	USB 2.0	4	0.48
DisplayPort	DisplayPort 1.4	1	Not available
HDMI	HDMI 2.1	1	Not available
Ethernet (RJ45)	Not available	1	1
3.5 mm audio	Not available	3	Not available
PS/2	Not available	1	Not available

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 Back Panel Connectors: 1 x PS/2 keyboard/mouse port, 1 x DisplayPort, 1 x HDMI port, 4 x USB 3.2 Gen 1 ports, 4 x USB 2.0/1.1 ports, 1 x RJ-45 port and 3 x audio jacks. The list has no button and no optical S/PDIF port. LAN is 1 Gbps. DisplayPort 1.4 (5120x2880 at 60 Hz) and HDMI 2.1 (4096x2160 at 60 Hz) work only with Ryzen 5000 G-Series and 4000 G-Series processors, which have integrated graphics.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026Section 2-2 gives the same back panel list as the Rev. 1001 manual. Its LAN line adds 10 Mbps to 1 Gbps and 100 Mbps.

Rear USB ports

8=CalculatedFrom Rear ports

8=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

1=CalculatedFrom Rear ports

0=CalculatedFrom Rear ports

Fastest rear USB port

10Gbps=CalculatedFrom Rear ports

5Gbps=CalculatedFrom Rear ports

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

Not available

Not available

Internal connectors

4 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 B550M K

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	1	2

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 1 x USB 3.2 Gen 1 header and 1 x USB 2.0/1.1 header. Section 2-7 items 9 and 10: each header serves two ports through an optional bracket. No front USB-C header and no USB power output is stated.

Front USB-C header speed

Not available

Not available

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).

21Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 Internal Connectors: 1 x CPU fan header and 1 x system fan header, both 4-pin.

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.

01Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The complete internal connector list has no ARGB header.

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.

01Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The complete internal connector list has no RGB 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.

Not available

Ethernet ports

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Ethernet speediFastest Ethernet port.

2.5Gbps=CalculatedFrom Rear ports

1Gbps=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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The Specifications list has no Wireless section and the back panel list has no antenna connectors. The newer B550M K WIFI6E is a separate model.

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).

Not available

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.

Not available

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

Not available

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

Not available

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.

Not available

Audio

1 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.

Not available

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

Not available

Features

3 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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The back panel list has no button. Q-Flash is a BIOS utility and needs a CPU and memory.

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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-7 item 13 is the CLR_CMOS jumper. The back panel list has no button.

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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The specifications and connector list name no two-digit 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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The internal connector list and the section 1-1 layout name no power or start button on the board.

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_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: BIOS is 1 x 128 Mbit flash with a licensed AMI UEFI BIOS. Dual BIOS is not named.

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.

Not available

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 latch1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-7 item 6: pull the clip's tab out of the mounting hole, slide the M.2 SSD in, press it down and press the clip's tab into the mounting hole. No screw is used.

Measured

None of 3 known

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.

Not available

Not available

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

Not available

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.

Not available

Not available

In the box

1 of 1 differ

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.

SATA cable, User's Manual, I/O Shield1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 1-2 box contents: B550M K motherboard, User's Manual, One SATA cable, I/O Shield, for reference only. The Rev. 1102 manual lists Two SATA cables, so the SATA cable count is not stored.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026Section 1-2: B550M K WIFI6E or B550M K motherboard, User's Manual, I/O Shield, Two SATA cables and One antenna (WIFI6E only). The older Rev. 1001 manual says One SATA cable.

Links

Not compared

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/B550M-K-rev-103Maker product pagegigabyte.com/Motherboard/B550M-K-rev-10/spRead 15 October 2026GIGABYTE product page for B550M K rev. 1.0. Revisions 1.1 and 1.2 have their own pages with the same name.

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.

www.gigabyte.com/Motherboard/B550M-K-rev-10/sp3Maker product pagegigabyte.com/Motherboard/B550M-K-rev-10/spRead 15 October 2026The /sp page is GIGABYTE's specification page. It was read through a web search excerpt only.

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_b550m_k_1_0.pdf1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026GIGABYTE B550M K User's Manual Rev. 1001, copyright 2023, 29 pages, hosted by trovaprezzi.it. It is the manual for rev. 1.0. A newer GIGABYTE manual, Rev. 1102 from 2026, covers B550M K and B550M K WIFI6E and is listed below.

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.

Not available

Not available

Warranty

0 of 1 differ

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.

3years4Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026The data sheet from a European distributor feed gives Warranty period 3 year(s). The market is Europe. Amazon US says 3 Years Manufacturer.5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026Warranty Description: 3 Years Manufacturer, on the US page.7Spec databasegeizhals.at/gigabyte-b550m-k-a2901610.htmlRead 15 October 2026Garantie row: 3 Jahre. The market is Austria.

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