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ASUS ROG STRIX B850-G GAMING WIFI vs MSI MAG B850M MORTAR WIFI

A

Product A: ASUS

ROG STRIX B850-G GAMING WIFI

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B

Product B: MSI

MAG B850M MORTAR WIFI

66 of 78 known

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Only differences

AASUS ROG STRIX B850-G GAMING WIFI

BMSI MAG B850M MORTAR WIFI

General

2 of 9 differ

Series

ROG Strix2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026ROG Strix is the ASUS line in the product name. The page sits in the ROG Strix motherboard family.

MAG1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Cover: MAG Series Motherboard, MAG B850M MORTAR WIFI.

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

ROG STRIX B850-G GAMING WIFI, 90MB1M30-M0AAY0, 90MB1M30-M0EAY04Maker product pagerog.asus.com/us/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/wtbRead 14 October 2026The ASUS where-to-buy page lists the order codes 90MB1M30-M0AAY0 and 90MB1M30-M0EAY0 among the board's regional codes. 90MB1M30-M0EAY0 is also the code at Scan UK, Comfeel and Arvutitark. The ASUS store price on that page is $259.99. It is a current price and not stored as a launch price.10Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026Mfr Part Number: ROG STRIX B850-G GAMING WIFI.11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026Scan UK lists model number 90MB1M30-M0EAY0.12Retailer pageeshop.comfeel.cz/asus-mb-sc-am5-rog-strix-b850-g-gaming-wifi-amd-b850-4xddr5-1xdp-1xhdmi-wifi-matxRead 14 October 2026Supplier code 90MB1M30-M0EAY0.

MAG B850M MORTAR WIFI, 7E61-001R, 911-7E61-0011Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026The manual names only MAG B850M MORTAR WIFI. 7E61-001R and 911-7E61-001 are from BuildCores, Geizhals and the MSI Italia e-shop.2Maker product pageit-store.msi.com/products/mag-b850m-mortar-wifi-scheda-madreRead 14 October 2026MSI Italia e-shop (it-store.msi.com, vendor MSI Italia) lists the order codes 911-7E61-001 and 911-7E61-008. Only 911-7E61-001 is stored, because it matches BuildCores. The page carries the maker's spec tab text.12Spec databasebuildcores.com/products/Motherboard/lswl3ubs7/MSI-B850M-MAG-MORTAR-WIFI-AM5-DDR5-Micro-ATXRead 14 October 2026Part numbers: MAG B850M MORTAR WIFI, 7E61-001R and 911-7E61-001.

GTIN / EAN

199291092266, 471163609226510Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026The Amazon US listing for ASIN B0FH7MB8WV gives UPC 199291092266.11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026Scan UK lists GTIN 4711636092265.12Retailer pageeshop.comfeel.cz/asus-mb-sc-am5-rog-strix-b850-g-gaming-wifi-amd-b850-4xddr5-1xdp-1xhdmi-wifi-matxRead 14 October 2026Comfeel lists EAN 4711636092265.

4711377321150, 82414241079011Retailer pagescan.co.uk/products/msi-mag-b850m-mortar-wifi-amd-b850-am5-ddr5-pcie-50-3x-m2-5g-wifi7-usb-32-aplusc-amd-expo-atxRead 14 October 2026EAN 4711377321150. BuildCores adds UPC 824142410790.12Spec databasebuildcores.com/products/Motherboard/lswl3ubs7/MSI-B850M-MAG-MORTAR-WIFI-AM5-DDR5-Micro-ATXRead 14 October 2026UPC 824142410790 and EAN 4711377321150. A third EAN 4526541059315 is listed for Japan and is not stored.

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

Not available

January 20255Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 2026Article of 2025-01-06 (CES) presents the MAG B850M MORTAR WIFI with the new MSI B850 boards.

Status

Available10Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026The listing is on sale on 2026-10-14 at best sellers rank 14 in Computer Motherboards.11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026In stock on 2026-10-14.

Available10Spec databasegeizhals.de/msi-mag-b850m-mortar-wifi-a3383554.htmlRead 14 October 2026Listed with offers from many shops on 2026-10-14. BuildCores shows it in stock at Walmart, Newegg and B&H. MSI Italia's e-shop showed it unavailable that day.

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

Not available

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

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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-b850-g-gaming-wifiRead 14 October 2026The page sits under ROG gaming motherboards (breadcrumb Gaming Motherboards).

Gaming2Maker product pageit-store.msi.com/products/mag-b850m-mortar-wifi-scheda-madreRead 14 October 2026MAG is MSI's gaming series. The e-shop text sells a fast gaming experience and the board carries the MSI Arsenal Gaming mark. Geizhals files it 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

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Platform

0 of 4 differ

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

AM51Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

AM51Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.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 B8501Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

AMD B8501Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.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 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026AM5 for Ryzen 9000, 8000 and 7000 Series. The page refers to the ASUS download center for the CPU support list. Read on 2026-10-14.

AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications, CPU row: AMD Ryzen 9000/8000/7000 Series Desktop Processors, socket AM5. The manual points to msi.com for the newest support list. Read on 2026-10-14.

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

Yes2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026The page describes robust overclocking capabilities for AMD Ryzen 9000, 8000 and 7000 Series with AMD EXPO and PBO enhancement. AMD also describes the B850 platform with enhanced overclocking capabilities.9Maker product pageamd.com/en/products/processors/chipsets/am5.htmlRead 14 October 2026AMD describes the B850 platform with enhanced overclocking capabilities. This is the chip maker's page and not the board maker's.

Yes2Maker product pageit-store.msi.com/products/mag-b850m-mortar-wifi-scheda-madreRead 14 October 2026The page lists Core Boost, Memory Boost and Memory Overclocking and AMD EXPO under Ultra Performance. The chipset page of AMD is the primary source.4Maker product pageamd.com/en/products/processors/chipsets/am5.htmlRead 14 October 2026AMD B850 Chipset: featuring enhanced overclocking capabilities, DDR5 memory support with AMD EXPO and PCIe 5 for NVMe storage.

Board

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

Micro-ATX1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026micro-ATX form factor.

Micro-ATX1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications, Form Factor row: M-ATX, 9.6 in. x 9.6 in. (243 mm x 243 mm).

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.

Width244Height244mm(9.6 × 9.6 in)1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20269.6 inch x 9.6 inch (24.4 cm x 24.4 cm).3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026micro-ATX form factor, 9.6 inch x 9.6 inch (24.4 cm x 24.4 cm).

Width244Height244mm(9.6 × 9.6 in)1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 9.6 in. x 9.6 in. (243 mm x 243 mm). The manual's millimetre figure is cut short. 9.6 in is 243.84 mm, which Scan UK lists and which rounds to the stored 244 mm.

PCB layersiCopper layers in the circuit board as published.

82Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Overview: eight-layer PCB.6Reviewstreberi.rs/asus-rog-strix-b850-g-recenzija-najjaca-matx-ploca-za-am5Read 14 October 2026The review says the board has 8 PCB layers.

82Maker product pageit-store.msi.com/products/mag-b850m-mortar-wifi-scheda-madreRead 14 October 2026Ultra Performance: 8-layer PCB with 2oz thick copper.5Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 2026Eight-layer PCB.7Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 20268-layered PCB with 2oz thickened copper.11Retailer pagescan.co.uk/products/msi-mag-b850m-mortar-wifi-amd-b850-am5-ddr5-pcie-50-3x-m2-5g-wifi7-usb-32-aplusc-amd-expo-atxRead 14 October 20268 layers, 2oz thickened 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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The 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/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026The component overview on pages 27 to 54 shows the usual front-side power, fan and front-panel 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-b850-g-gaming-wifiRead 14 October 2026The page describes a white PCB with a hint of RGB on the I/O edge and ASUS Aura lighting.

No7Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 2026There is no RGB on the board, only room for your own through the RGB headers.8Reviewthefpsreview.com/2025/07/28/msi-b850m-mortar-wifi-motherboard-reviewRead 14 October 2026The review says the board has no on-board LEDs.

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.

14+2+12Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 202614(80A)+2(80A)+1(80A) power stages: 14 Vcore, 2 SoC and 1 MISC. Stored as 14+2+1.

12+2+12Maker product pageit-store.msi.com/products/mag-b850m-mortar-wifi-scheda-madreRead 14 October 2026Ultra Performance: Duet Rail power system 12+2+1, dual 8-pin CPU power connectors.5Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 2026MSI's launch text through Club386: 12+2+1 power phases rated at 60A, shrunk from the Tomahawk.

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.

142Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026The VRM features 14+2+1 power stages.

127Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 202612x 60A DRPS stages for the CPU in a 12+2+1 Duet Rail design.8Reviewthefpsreview.com/2025/07/28/msi-b850m-mortar-wifi-motherboard-reviewRead 14 October 202612+2+1 Duet Rail with Smart Power Stages.10Spec databasegeizhals.de/msi-mag-b850m-mortar-wifi-a3383554.htmlRead 14 October 2026VRM row: 12x 60 A MP87661 smart power stages for VCORE, 2 for SOC and 1 for misc. Geizhals also calls it 8 real CPU phases (6+2) with 14 virtual phases.

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.

80A2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Each of the 14 Vcore stages is rated 80 A. The SoC and MISC stages are also 80 A.

60A5Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 202612+2+1 phases rated at 60A.7Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 202612x 60A phases for the CPU.8Reviewthefpsreview.com/2025/07/28/msi-b850m-mortar-wifi-motherboard-reviewRead 14 October 2026Smart Power Stages rated at 60 A each.10Spec databasegeizhals.de/msi-mag-b850m-mortar-wifi-a3383554.htmlRead 14 October 202612x 60 A MP87661 (Monolithic Power Systems) for VCORE.11Retailer pagescan.co.uk/products/msi-mag-b850m-mortar-wifi-amd-b850-am5-ddr5-pcie-50-3x-m2-5g-wifi7-usb-32-aplusc-amd-expo-atxRead 14 October 2026The VRM section copies MSI's text: 12 Vcore Power - SPS 60A, 2 SOC and 1 Misc. The overview text of the same page says 14+2+1, which looks like a copy from another board and is not used.

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.

ASUS ASP23085Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026A digital EPU DIGI+ controller, model ASP2308AGQ, drives 17 Vishay SiC629 80 A MOSFETs. ASUS does not name the controller. Single review. Stored as ASUS ASP2308, the same form as the ASUS TUF GAMING B850-PLUS WIFI product.

Richtek RT3678BE10Spec databasegeizhals.de/msi-mag-b850m-mortar-wifi-a3383554.htmlRead 14 October 2026PWM controller row: RT3678BE (max 10 phases) and RT3672EE (max 2 phases). Both are Richtek. The Vcore controller is stored. No review names a controller, and this is one aggregator.

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

8+8 pin1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Internal connectors, power related: 1 x 24-pin main power and 2 x 8-pin +12V CPU power.

8+8 pin1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications, Power Connectors: 1x 24-pin ATX, 2x 8-pin +12V and 1x 8-pin PCIe 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-b850-g-gaming-wifi/specRead 14 October 2026The power related connector list is complete and has no extra slot power connector. The page never states that one is absent.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Power connectors section: ATX_PWR, CPU_12V_1 and CPU_12V_2 only.

Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and page 44: PCIE_PWR1, an 8-pin PCIe power connector. The Special Features list names it Supplemental PCIe Power Connector.

Memory

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Memory type

DDR51Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

DDR51Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications, Memory row: 4x DDR5 memory slots, supporting up to 256GB, dual channel.

Memory slotsiDIMM slots on the board.

41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

41Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.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.

256GB1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20264 x DIMM slots, max. 256GB, DDR5.

256GB1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.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.

8,000MT/s1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Supports up to 8000+MT/s (OC) with Ryzen 9000, 8000 and 7000 Series processors. The Ryzen 9000 value is stored. The page gives no table for other module setups.

8,200MT/s2Maker product pageit-store.msi.com/products/mag-b850m-mortar-wifi-scheda-madreRead 14 October 2026Memory Support: DDR5 8200 - 5600 (OC) MT/s. Ryzen 9000 maximum overclocking: 1DPC 1R up to 8200+ MT/s, 1DPC 2R up to 6400+, 2DPC 1R up to 6400+ and 2DPC 2R up to 6400+. The stored 8200 is the one-module-per-channel, one-rank value for Ryzen 9000. The JEDEC list is 5600 - 4800 MT/s.

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-b850-g-gaming-wifi/specRead 14 October 2026The page says ECC and Non-ECC Un-buffered DIMM. The footnote says non-ECC DDR5 supports on-die ECC. The page does not say how ECC works with each CPU. ASUS BIOS 1681 release notes say it optimizes ECC-UDIMM memory performance.

No1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: Supports Non-ECC, Un-buffered memory.

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

No1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: Supports CUDIMM, Clock Driver bypass mode only. CUDIMM boot frequency may vary by CPU series, with manual overclocking after boot.

Expansion slots

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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 B850-G GAMING WIFI

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

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Ryzen 9000 and 7000: 1 x PCIe 5.0 x16 slot. Ryzen 8000: the same slot runs PCIe 4.0 at x8 or x4. The board has no other expansion slot. Stored with Ryzen 9000.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout shows PCIEX16(G5) as the only expansion slot.

BMSI MAG B850M MORTAR WIFI

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	5	CPU	1
PCIe x4	4	4	Chipset	1

Source1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and page 33: PCI_E1 is PCIe 5.0 x16 from the CPU for Ryzen 9000 and 7000. It runs PCIe 4.0 x8 with Ryzen 8700, 8600 and 8400, and PCIe 4.0 x4 with Ryzen 8500 and 8300. PCI_E2 is a PCIe x4 slot, PCIe 4.0 x4 from the B850 chipset. The page 33 drawing shows it shorter than the x16 slot.

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

1=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.

5=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 B850-G GAMING WIFI

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M.2_1	4	4	CPU	M.2 2280	No	Yes
M.2_2	5	4	CPU	M.2 2280	No	Yes
M.2_3	4	4	Chipset	M.2 2280	No	Yes
M.2_4	4	4	Chipset	M.2 2280	No	No

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Total 4 x M.2 (Key M). Ryzen 9000 and 7000: M.2_1 type 2242/2260/2280 PCIe 4.0 x4 and M.2_2 type 2242/2260/2280 PCIe 5.0 x4. Ryzen 8000: M.2_1 runs PCIe 4.0 x4 and M.2_2 runs PCIe 4.0 x4 or x2. B850 chipset: M.2_3 type 2280 PCIe 4.0 x4 and M.2_4 type 2280 PCIe 4.0 x4 on the underside of the board. 2260 is stored as 2280. The page lists no M.2 SATA support, so sata is false for every slot. It lists no lane sharing, so that column is empty.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Overview: 4 x M.2 slots, 1 x 2280 PCIe 5.0 x4 and 3 x 2280 PCIe 4.0 x4. The M.2 heatsink covers three M.2 slots and the page does not name which. The Profesional Review text says the slot on the back of the board has none, so the underside M.2_4 is stored without a heatsink.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The specification summary matches the page. The manual lists M.2 types and PCIe modes only. M.2_4 is at the back of the motherboard.5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Three of the four M.2 slots have passive aluminum heatsinks with Q-Latch. The fourth slot, on the back of the board, has no heatsink and is held by a screw.

BMSI MAG B850M MORTAR WIFI

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M2_1	5	4	CPU	M.2 2280	No	Yes
M2_2	5	4	CPU	M.2 2280	No	Yes
M2_3	4	2	Chipset	M.2 2280	No	No

Source1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and pages 36 to 40, Ryzen 9000 values. M2_1 and M2_2 are from the CPU, PCIe 5.0 x4, and take 2260 and 2280 drives. M2_3 is from the B850 chipset, PCIe 4.0 x2, 2280 only, and sits on the bottom of the board. M2_1 and M2_2 are covered by the screwless EZ M.2 Shield Frozr II. The M2_3 install steps use a screw and no heatsink. With Ryzen 8000, M2_1 runs PCIe 4.0 x4 and M2_2 runs PCIe 4.0 x4 or x2 by model. No slot lists an M.2 SATA mode, so sata is false.

M.2 slots

4=CalculatedFrom M.2 storage slots

3=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

1=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.

21Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20262 x SATA 6Gb/s ports. AMD RAIDXpert2 is listed.

41Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 4x SATA 6Gb/s ports from the B850 chipset.

Rear ports

2 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 B850-G GAMING WIFI

Type	Version	Count	Max link rate (Gbps)	Power out (W)
USB-C	USB 3.2 Gen 2x2	1	20	Not available
USB-C	USB 3.2 Gen 2	1	10	15
USB-A	USB 3.2 Gen 2	2	10	Not available
USB-A	USB 3.2 Gen 1	4	5	Not available
USB-A	USB 2.0	2	0.48	Not available
HDMI	HDMI 2.1	1	Not available	Not available
DisplayPort	DisplayPort 1.4	1	Not available	Not available
Ethernet (RJ45)	Not available	1	2.5	Not available
3.5 mm audio	Not available	2	Not available	Not available
Optical S/PDIF	Not available	1	Not available	Not available

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Back panel: 1 USB 20Gbps Type-C, 3 USB 10Gbps (2 Type-A and 1 Type-C), 4 USB 5Gbps Type-A, 2 USB 2.0 Type-A (10 USB ports in total), 1 DisplayPort (max 8K@30Hz as specified in DisplayPort 1.4), 1 HDMI (4K@60Hz as specified in HDMI 2.1), 1 Wi-Fi module, 1 Intel 2.5Gb Ethernet, 2 audio jacks and 1 optical S/PDIF out. ASUS names USB by speed, so 20Gbps is stored as USB 3.2 Gen 2x2, 10Gbps as USB 3.2 Gen 2 and 5Gbps as USB 3.2 Gen 1. The footnote says USB Type-C power delivery output max 5V/3A, which sits on the 10Gbps Type-C port and is stored as 15 W. The overview page says up to 30W PD fast-charge. The spec page and the manual say 5V/3A and are stored. The Wi-Fi module and the two buttons are not ports.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The specification summary lists the same rear USB (total 10 ports) and the same footnote: USB Type-C power delivery output max 5V/3A.

BMSI MAG B850M MORTAR WIFI

Type	Version	Count	Max link rate (Gbps)
USB-C	USB 3.2 Gen 2x2	1	20
USB-C	USB 3.2 Gen 2	1	10
USB-A	USB 3.2 Gen 2	3	10
USB-A	USB 3.2 Gen 1	4	5
HDMI	HDMI 2.1	1	Not available
Ethernet (RJ45)	Not available	1	5
3.5 mm audio	Not available	2	Not available
Optical S/PDIF	Not available	1	Not available

Source1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and page 23: 3x USB 10Gbps Type-A (CPU), 1x USB 10Gbps Type-C (CPU), 4x USB 5Gbps Type-A, 1x USB 20Gbps Type-C (B850 chipset), 1x HDMI 2.1 with FRL, 1x 5Gbps LAN, 2 audio jacks (line-out and mic-in) and 1 optical S/PDIF out. MSI's speed names are stored as USB-IF names: 5Gbps as USB 3.2 Gen 1, 10Gbps as Gen 2 and 20Gbps as Gen 2x2. HDMI output works only with a CPU that has integrated graphics. The two Wi-Fi antenna connectors and the Clear CMOS and Flash BIOS buttons are not ports. The manual gives no USB power or DisplayPort alt mode figures.

Rear USB ports

10=CalculatedFrom Rear ports

9=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

2=CalculatedFrom Rear ports

2=CalculatedFrom Rear ports

Fastest rear USB port

20Gbps=CalculatedFrom Rear ports

20Gbps=CalculatedFrom Rear ports

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

Not available

Not available

Internal connectors

1 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 B850-G GAMING WIFI

Header	Max data rate (Gbps)	Headers	Front ports served
USB-C header	10	1	1
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-b850-g-gaming-wifi/specRead 14 October 2026Front USB (total 7 ports): 1 x USB 10Gbps connector (1 x USB Type-C), 1 x USB 5Gbps header for 2 ports and 2 x USB 2.0 headers for 4 ports.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Layout contents: 8. USB 10Gbps Type-C front panel connector, 9. USB 5Gbps header, 10. USB 2.0 header (two).

BMSI MAG B850M MORTAR WIFI

Header	Max data rate (Gbps)	Headers	Front ports served
USB-C header	10	1	1
USB 3 header (19-pin)	5	1	2
USB 2.0 header (9-pin)	0.48	2	4

Source1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and pages 46 to 47: JUSBC1 is 1x USB 10Gbps Type-C front port. JUSB3 is one 5Gbps connector for 2 ports. JUSB1 and JUSB2 are two USB 2.0 connectors for 4 ports.

Front USB-C header speed

10Gbps=CalculatedFrom Internal USB headers

10Gbps=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-b850-g-gaming-wifi/specRead 14 October 20261 CPU fan, 1 CPU OPT fan, 1 AIO pump and 3 chassis fan headers, all 4-pin.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Fan and Pump headers table: CPU_FAN, CPU_OPT, AIO_PUMP and CHA_FAN1 to CHA_FAN3.5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Six fan headers: three SYS_FAN, one CPU_FAN, one SYS_FAN/PUMP and one CPU_OPT.

61Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 1x CPU fan, 1x water-pump/system fan and 4x system fan connectors. The 7-pin EZ Conn-Header V1 (JAF_1) carries fan and ARGB signals together and is not counted.

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.

31Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20263 x Addressable RGB Gen 2 headers.

31Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 3x 3-pin A-RAINBOW V2 (ARGB Gen2) LED connectors.

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.

03Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout lists only 3 x Addressable RGB Gen 2 headers and no 4-pin RGB header.5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Three 5V ARGB Gen2 headers and no RGB header are named.

11Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 1x 4-pin RGB LED connector (JRGB1, 12 V).

Networking

4 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 I2265Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Ethernet is an Intel I226-V 2.5 GbE chip. ASUS writes only Intel 2.5Gb Ethernet. The -V suffix is dropped.

Realtek RTL81261Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: Realtek 8126-VB 5Gbps LAN controller. The suffix -VB is left out.

Ethernet ports

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Ethernet speediFastest Ethernet port.

2.5Gbps=CalculatedFrom Rear ports

5Gbps=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-b850-g-gaming-wifi/specRead 14 October 2026A Wi-Fi module is listed on the back panel (1 x Wi-Fi module).

Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: the wireless module is pre-installed in the M.2 (Key-E) slot.

Wi-Fi standard

Wi-Fi 71Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20262x2 Wi-Fi 7 (802.11be).

Wi-Fi 71Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 802.11 a/b/g/n/ac/ax/be, Wi-Fi 7.

Wi-Fi bandsiBands the installed module supports.

2.4 GHz, 5 GHz, 6 GHz1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Supports 2.4/5/6GHz frequency band. The 6 GHz band and bandwidth vary by country.

2.4 GHz, 5 GHz, 6 GHz1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: 2.4GHz/5GHz/6GHz. 6 GHz may depend on each country's 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.

160MHz1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Supports Wi-Fi 7 160MHz bandwidth, up to 2.9Gbps. Profesional Review writes MediaTek MT7927 with 320 MHz channels. The maker figure is stored and the Wi-Fi chip is left out because of this conflict.

320MHz1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: MU-MIMO TX/RX, 320MHz, up to 5.8Gbps.

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

Qualcomm QCNCM8659Reviewmezha.ua/en/reviews/oglyad-materinskoji-plati-msi-mag-b850m-mortar-wifi-vdaliy-balans-u-formati-matx-305429Read 14 October 2026Review of 2025-10-24: tri-band Wi-Fi 7 module, Qualcomm QCNCM865, up to 320 MHz and 5.8 Gb/s. Geizhals gives the same chip. MSI's other boards use the names NCM865 and FastConnect 7800 for the same family. Mezha also prints the wrong audio codec ALC4020.10Spec databasegeizhals.de/msi-mag-b850m-mortar-wifi-a3383554.htmlRead 14 October 2026WLAN/Bluetooth: Wi-Fi 7 (2x2, Qualcomm QCNCM865), Bluetooth 5.4.

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

5.41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Bluetooth v5.4. The page says the version may vary and refers to the Wi-Fi module maker.

5.41Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications: Bluetooth 5.4, MLO, 4KQAM. The version may be updated by the Wi-Fi chipset vendor.

Audio

1 of 2 differ

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

Realtek ALC1220P1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Realtek ALC1220P 7.1 Surround Sound High Definition Audio CODEC with a Savitech SV3H712 amplifier. The Savitech part is an amplifier and is not stored as a DAC.

Realtek ALC40801Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications, Audio row: Realtek ALC4080 Codec, 7.1-channel USB high performance audio. Mezha prints ALC4020, which the manual contradicts.

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

2 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-b850-g-gaming-wifi/specRead 14 October 2026BIOS FlashBack button on the back panel.

Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and page 23: Flash BIOS button on the rear panel, with a Flash BIOS port (USB 5Gbps Type-A). Page 64 explains the update.

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.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Clear CMOS button on the back panel.

Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and page 23: Clear CMOS button on the rear panel. JBAT1 is a second jumper.

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.

No3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout contents list Q-LEDs (CPU, DRAM, VGA and boot device), a BIOS FlashBack LED and an 8-pin CPU power plug LED. No two-digit code display is listed in the specification summary or the layout. The overview page HTML holds a Q-CODE text block, but it is commented out and not shown. The manual never states that a code display is absent.

No1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications and Onboard LEDs page: 4x EZ Debug LED and 1x EZ Memory Detection LED. They are single status LEDs. No two-digit display is listed.7Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 2026The review sees 4 debug LEDs and says there is no debug code LED panel.

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.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Internal connectors, miscellaneous: 1 x Start button.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Layout item 14: Start button, which powers up the system.

Not available

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-b850-g-gaming-wifi/specRead 14 October 2026BIOS: 256 Mb Flash ROM, UEFI AMI BIOS. One flash ROM is stated and no dual BIOS feature is listed. The page never states that dual BIOS is absent.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The specification summary gives one 256 Mb Flash ROM. The manual never states that dual BIOS is absent.

No1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Specifications, BIOS Features: 1x 256 Mb flash. Dual BIOS is not stated.

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

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026ASUS EZ DIY list: Pre-mounted I/O shield.

Yes1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Special Features, EZ DIY: Pre-installed I/O Shield.

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.

Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release, Push-on antenna connector1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026ASUS Q-Design: M.2 Q-Latch, M.2 Q-Release, PCIe Slot Q-Release and Q-Antenna.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Q-Release lets the M.2 heatsink come off with a switch and no tiny screws. Q-Latch installs M.2 SSDs with one press. PCIe Slot Q-Release unlocks the card by pressing a button. Q-Antenna snaps the Wi-Fi antenna into place.

Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Special Features, EZ DIY: EZ M.2 Shield Frozr II (screwless heatsink, pages 37 to 39), EZ M.2 Clip II (locks the SSD without a screw) and EZ PCIe Release (button, page 33 to 35). The Wi-Fi antenna cables are screwed on, so antenna_connector is not stored.

Measured

3 of 3 differ

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.

39°C5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Ryzen 5 7500X3D (65 W) at stock without voltage changes, Corsair H150i ELITE LCD cooler, 32 GB DDR5-6000, RTX 4080, BIOS 1087. The review says it ran a CPU stress test at stock and read surface temperatures with a thermal camera and sensors with HWiNFO. The stress tool, duration and ambient temperature are not stated. Full stock VRM sensor 39 C and exterior camera 35 C. In the relaxed stock profile the sensor read 32 C. The HWiNFO sensor reading is stored. The CPU is a light load for this VRM, so the value is not comparable with tests on 150 W CPUs.

51.5°C8Reviewthefpsreview.com/2025/07/28/msi-b850m-mortar-wifi-motherboard-reviewRead 14 October 2026Review of 2025-07-28. Cinebench R23 multi-core for at least 15 minutes with readings at the 15 minute mark, ambient about 24 C, Ryzen 9 7900X, cooler not stated. HWiNFO64 reads 51.5 C for the hottest MOSFET (board sensor, stored) and a handheld infrared thermometer reads 43.8 C at the power area. Tech4Gamers writes 57 C with a 9950X and no method, and Mezha 46 to 53 C with a 9700X.

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

106W7Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 2026Review of 2025-03-24: 106 W at idle. Test system: Ryzen 9 9950X, ARCTIC Liquid Freezer II 420, RTX 4090, AGESA 1.2.0.2. The text calls the figures combined power consumption and does not name the meter. The method is not stated, so this is read as whole system power.

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

359W7Reviewtech4gamers.com/msi-mag-b850m-mortar-wifi-reviewRead 14 October 2026Same review: 359 W under load, Cinebench 2024 multicore, same test system. The meter is not named.

In the box

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In the boxiItems as the maker lists them.

2 x SATA 6Gb/s cables, 1 x ASUS WiFi Q-Antenna, 1 x Cable ties package, 1 x M.2 Q-Latch package, 1 x ROG key chain, 1 x ROG Strix stickers, 3 x M.2 rubbers, 1 x Screw package for M.2 SSD, 1 x Quick start guide1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Accessories list on the specification page, the same as the manual's package contents.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Package contents list on page 13. It says 1 x ROG Strix sticker.

1x Motherboard, 1x Quick installation guide, 1x European Union Regulatory Notices, 1x SATA cable, 1x EZ Front Panel Cable, 1x 1 to 2 EZ Conn-Cable (V1), 1x EZ Wi-Fi antenna, 2x EZ M.2 Clip II, 1x EZ M.2 Clip II Remover, 1x M.2 screw (1 set/pack)1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026Package Contents, page 22.

Links

Not compared

Product page

rog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026

www.msi.com/Motherboard/MAG-B850M-MORTAR-WIFI3Maker product pagemsi.com/Motherboard/MAG-B850M-MORTAR-WIFIRead 14 October 2026The URL comes from the job evidence and search results. msi.com blocks agents, so the page was not opened. Specifications were read from the user guide and the MSI Italia e-shop instead.

Spec sheet

rog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/spec1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

Not available

Manual

dlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdf3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026ASUS user guide E25990, First Edition, April 2025, from dlcdnets.asus.com.

www.trovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdf1Owner's manualtrovaprezzi.it/manuali/msi_mag_b850m_mortar_wifi.pdfRead 14 October 2026MSI user guide for MAG B850M MORTAR WIFI, hosted by trovaprezzi.it (72 pages). Revision history: Version 1.0, 2025/03, First release. msi.com blocks agents, so the maker's own copy was not opened.

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

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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.

3years10Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026Warranty Description: 3 Years (US listing).11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026Scan UK: 36 months return to base.12Retailer pageeshop.comfeel.cz/asus-mb-sc-am5-rog-strix-b850-g-gaming-wifi-amd-b850-4xddr5-1xdp-1xhdmi-wifi-matxRead 14 October 2026Warranty of 36 months in the Czech shop. It is the shop's stated warranty and not an ASUS page.

3years10Spec databasegeizhals.de/msi-mag-b850m-mortar-wifi-a3383554.htmlRead 14 October 2026Warranty 3 Jahre. Scan UK states 36 months.11Retailer pagescan.co.uk/products/msi-mag-b850m-mortar-wifi-amd-b850-am5-ddr5-pcie-50-3x-m2-5g-wifi7-usb-32-aplusc-amd-expo-atxRead 14 October 202636 months, direct, for the UK market.

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