MSI MAG B850 TOMAHAWK MAX WIFIAM5 · ATX · DDR5 · board-only configuration · MSI global specification- M.2 storage positions
- 4This one: 5
MOTHERBOARDS
ASUS ROG STRIX B850-E GAMING WIFI
AM5 · ATX · ASUS part 90MB1J60-M0AAY0
- CPU socket
- AM5
- Chipset
- AMD B850
- Form factor
- ATX: 305 × 244 mm
An ATX AM5 motherboard with 4 DDR5 memory slots, 5 M.2 storage positions and Wi-Fi 7 alongside wired Ethernet.
Prices & buying options
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THE ACTUAL PRODUCT
Compare with MSI MAG B850 TOMAHAWK MAX WIFI
Specifications checked 10 Sept 2026Manufacturer specifications, not a hands-on test.
The nearest checked motherboards by key specifications, with what differs from the ASUS ROG STRIX B850-E GAMING WIFI. The first matches the Compare button above.
MSI MAG B850 TOMAHAWK MAX WIFIAM5 · ATX · DDR5 · board-only configuration · MSI global specification
ASUS ROG STRIX B850-F GAMING WIFI90MB1J70-M0MAY0 · AM5 · ATX · ASUS UK specification- M.2 storage positions
- 4This one: 5
- SATA storage ports
- 2This one: 4
ASUS ROG STRIX B850-A GAMING WIFI90MB1J50-M0MAY0 · AM5 · ATX · ASUS UK specification- M.2 storage positions
- 4This one: 5
- SATA storage ports
- 2This one: 4
Key strengths
5 M.2 storage positions and 4 SATA connectors provide several drive-connection options.
1 × Realtek 5Gb Ethernet and Wi-Fi 7 offer both wired and wireless network connections.
Before you buy
Using M.2_2 or M.2_3 reduces the primary graphics slot to x8; both M.2 positions are unavailable with Ryzen 8000. PCIEX16(G4) and M.2_4 share lanes: using the expansion slot disables that M.2 position.
Check the exact processor, BIOS and memory kit before purchase. The 256 GB ceiling and listed overclocking profiles are configuration limits, not a tested build guarantee.
Works with
Products in this catalogue that list the same socket or memory type as the ASUS ROG STRIX B850-E GAMING WIFI. A shared socket or memory type is necessary but not sufficient: check the exact CPU and memory support lists, and the BIOS version, before buying.
- 19 AM5 processorsSocket AM5 on both, from cited specifications
- 50 DDR5 memory kitsMemory type DDR5 on both, from cited specifications
Every specification. With its source.
Full specifications
Exact configuration: 90MB1J60-M0AAY0 · AM5 · ATX · ASUS global specification
25 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
Platform & board
4 items
- CPU socket
- AM5Source
- Chipset
- AMD B850Source
- Form factor
- ATX: 305 × 244 mm
Check case mounting positions and connector clearance.
Source - Specification market
- ASUS global documentation
UK and US buying links are searches, not proof of stock, identical regional wireless modules, bundles or warranty. Confirm the exact model and part identifier with the retailer.
Source
Memory
4 items
- DIMM slots
- 4
Physical DDR5 module positions; this count is not a guarantee of capacity or profile speed.
Source - Maximum listed memory
- 256 GB
Manufacturer capacity ceiling; check CPU support, BIOS and the validated DIMM population.
Source - Memory type, slots and limit
- 4 DDR5 DIMM slots; up to 256 GB; dual channel; AMD EXPO
Supported capacity, module population and profile speeds depend on the exact CPU, installed BIOS and validated memory kit. Profile support does not guarantee an overclock.
Source - Listed memory overclocking profiles
- Ryzen 9000, 8000, 7000: up to 8000+ MT/s (OC)
These are manufacturer-listed overclocking configurations, not guaranteed stock transfer rates or tested performance. CPU family and DIMM layout remain material.
Source
Expansion slots
1 item
- PCIe expansion configuration
- AMD Ryzen 9000 & 7000 Series Desktop Processors 1 × PCIe 5.0 × 16 slot with Q-Release Slim (supports x16 or x8 modes) AMD Ryzen 8000 Series Desktop Processors 1 × PCIe 5.0 × 16 slot with Q-Release Slim (supports PCIe 4.0 × 8 or x4 mode) AMD B850 Chipset 1 × PCIe 4.0 × 16 slot (supports x4 mode) Please check the PCIe bifurcation table on the support site (https://www.asus.com/support/FAQ/1037507/). When either M.2_2 or M.2_3 is enabled, PCIEX16(G5) will run x8. Specifications vary by CPU types. M.2_4 slot shares bandwidth with PCIEX16(G4). When PCIEX16(G4) slot is operating, M.2_4 will be disabled. - To ensure compatibility of the device installed, please refer to https://www.asus.com/support/download-center/ for the list of supported peripherals.
Using M.2_2 or M.2_3 reduces the primary graphics slot to x8; both M.2 positions are unavailable with Ryzen 8000. PCIEX16(G4) and M.2_4 share lanes: using the expansion slot disables that M.2 position.
Source
Storage
3 items
- M.2 storage positions
- 5
Using M.2_2 or M.2_3 reduces the primary graphics slot to x8; both M.2 positions are unavailable with Ryzen 8000. PCIEX16(G4) and M.2_4 share lanes: using the expansion slot disables that M.2 position.
Source - SATA storage ports
- 4
SATA 6 Gb/s; check the source for lane sharing and drive power requirements.
Source - Storage interfaces
- 5 M.2 storage positions; 4 SATA 6 Gb/s ports
Using M.2_2 or M.2_3 reduces the primary graphics slot to x8; both M.2 positions are unavailable with Ryzen 8000. PCIEX16(G4) and M.2_4 share lanes: using the expansion slot disables that M.2 position.
Source
USB & rear connections
3 items
- Rear connections
- 1 × USB4 (40Gbps)(1 × USB Type-C ) 1 × USB 20Gbps port (supports USB Type-C with up to 30W PD/PPS Fast-charge) 6 × USB 10Gbps ports (6 × Type-A) 4 × USB 2.0 ports (4 × Type-A) 1 × DisplayPort 1 × HDMI port 1 × Wi-Fi module 1 × Realtek 5Gb Ethernet port 2 × Gold-plated audio jacks 1 × Optical S/PDIF out port 1 × BIOS FlashBack button 1 × Clear CMOS button
Connector count and listed modes describe the rear panel. USB-C display and charging capability depends on the specific port; display output also depends on the CPU and source configuration.
Source - Internal USB connections
- Front USB (Total 7 ports) 1 × USB 10Gbps connector (1 × USB Type-C ) 1 × USB 5Gbps header supports 2 additional USB 5Gbps ports 2 × USB 2.0 headers support 4 additional USB 2.0 ports USB Type-C power delivery output: max. 5V/3A USB Type-C power delivery output: 5V/9V max. 3A, 12V max 2.5A, 15V max. 2.0A
Headers need compatible case ports or accessories; they are not additional rear sockets. Follow the stated power and cable requirements.
Source - Integrated-graphics display connections
- 1 × DisplayPort 1 × HDMI port 1 × USB4 (40Gbps) port supports USB Type-C display outputs - Graphics specifications may vary between CPU types. Please refer to AMD CPU specifications. Supports max. 8K@30Hz as specified in DisplayPort 1.4 Supports 4K@60Hz as specified in HDMI 2.1 Supports max. 4K@60Hz from ASMedia ASM4241 controller as specified in DisplayPort 1.4a VGA resolution support depends on processors' or graphic cards' resolution.
These are manufacturer-listed configurations, not measured display performance. A compatible processor with graphics, suitable cable and supported display mode are required.
Source
Networking
4 items
- Network interfaces
- 1 × Realtek 5Gb Ethernet; Wi-Fi 7 (320 MHz listed); Bluetooth 5.4 listed
Wireless bands and channel widths depend on local rules, the operating system and the installed module. Full Wi-Fi 7 features require Windows 11 24H2 or later where stated by ASUS; Bluetooth versions may vary by module.
Source - Wired Ethernet
- 1 × Realtek 5Gb Ethernet
Link-rate capability; real throughput depends on the connected network, cabling and workload.
Source - Included Wi-Fi
- Yes
Wi-Fi 7; 320 MHz listed. Wireless bands and channel widths depend on local rules, the operating system and the installed module. Full Wi-Fi 7 features require Windows 11 24H2 or later where stated by ASUS; Bluetooth versions may vary by module.
Source - Listed Bluetooth version
- 5.4
The manufacturer notes that the Bluetooth version can depend on the installed wireless module.
Source
Audio
1 item
- Audio hardware
- ALC4080 codec; manufacturer-listed 7.1-channel configuration
Channel configuration and spatial-audio support depend on the connected outputs, chassis audio wiring and software. A codec name is not an independent sound-quality measurement.
Source
Power, cooling & lighting
1 item
- Motherboard power connections
- 1 × 24-pin Main Power connector 2 × 8-pin +12V CPU Power connector
Check the complete connector list and the PSU cable type. Additional graphics-card, front-panel fast-charge and cooling connections can have separate requirements.
Source
BIOS, software & diagnostics
4 items
- CPU support / BIOS source
- AMD Ryzen 9000, 8000 and 7000 desktop processors. Verify the exact CPU and minimum BIOS using ASUS support before buying.
A shared socket and processor-family listing do not confirm that a particular BIOS revision supports every processor in that family.
Source - Firmware storage
- 256 Mb Flash ROM, UEFI AMI BIOS
Flash-ROM capacity does not identify the BIOS version installed on a retail board.
Source - Listed operating systems
- Windows 11
Individual features and drivers can have newer operating-system requirements, particularly wireless networking.
Source - Rear BIOS FlashBack button
- Yes
Use the exact model firmware and follow ASUS instructions; a button does not establish the currently installed BIOS version.
Source
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