Asus ROG Strix B850-A Gaming WiFi

Name: Asus ROG Strix B850-A Gaming WiFi
Brand: Asus
SKU: 5542

Manufacturer: Asus

The Asus ROG Strix B850-A Gaming WiFi is an ATX-form-factor motherboard built around the AM5 socket and AMD B850 chipset. It comes equipped with RGB lighting, a dual BIOS setup for straightforward recovery, and an easy BIOS reset mechanism, making it a well-rounded option for users who want flexibility without added complexity. The board measures 305 mm × 244 mm and carries a three-year warranty, with built-in Wi-Fi 7 (802.11be) and Bluetooth 5.4 handling wireless connectivity out of the box.

On the memory side, the board provides four DDR5 slots across two channels, supporting up to 192 GB at speeds reaching 8000 MHz, with overclocking headroom built in. Storage options include four M.2 sockets, two SATA 3 connectors, and full RAID support for modes 0, 1, 5, and 10. The rear I/O offers a varied USB selection — including a USB 3.2 Gen 2×2 Type-C port alongside multiple USB-A and USB-C options — plus HDMI 2.1 and DisplayPort outputs. The audio subsystem delivers 7.1-channel output with a 120 dB signal-to-noise ratio and S/PDIF out, while expansion is handled by one PCIe 5.0 x16 slot and one PCIe 4.0 x16 slot.

Pros

Supports Wi-Fi 7 alongside all major previous Wi-Fi generations, providing broad wireless compatibility
Four M.2 sockets offer substantial NVMe storage expansion within the ATX footprint
A 120 dB signal-to-noise ratio on the DAC and 7.1-channel audio output make for a capable onboard sound solution
Dual BIOS and easy BIOS reset reduce the risk of a failed update causing a permanent boot issue
DDR5 support across four slots with a 192 GB capacity ceiling gives significant headroom for memory-intensive workloads
RAID 0, 1, 5, and 10 support allows flexible storage redundancy and performance configurations

Cons

Only two SATA 3 connectors limits the number of traditional drives that can be connected
ECC memory is not supported, ruling out use cases that require error-correcting RAM
No USB 4 or Thunderbolt ports are available, which restricts connectivity for high-bandwidth peripherals
The absence of a TPM connector may be a limitation for certain security or enterprise-oriented setups
With only two analog audio connectors on the rear panel, users needing a full multi-channel analog audio setup may find the options limited

Who is this for?

This board is well suited to enthusiast desktop builders working on the AM5 platform who want room to grow — the four M.2 sockets, 192 GB DDR5 ceiling, and PCIe 5.0 x16 slot make it a strong fit for high-throughput storage and current-generation discrete graphics. The comprehensive wireless stack, including Wi-Fi 7 and Bluetooth 5.4, makes it particularly practical for setups where running ethernet is not ideal. Users who value system resilience will also appreciate the dual BIOS and easy BIOS reset, which reduce the risk of recovery headaches during overclocking or firmware updates, making this a sensible choice for those who like to push memory and CPU settings beyond stock.

Who is this NOT for?

Users who need ECC memory support for workstation-grade reliability — such as those running data-sensitive applications or light server tasks — will find this board unsuitable, as that capability is entirely absent. The lack of Thunderbolt or USB 4 ports makes it a poor match for creative professionals relying on high-bandwidth external devices such as fast NVMe enclosures or pro-grade displays that depend on those interfaces. Additionally, with only two SATA 3 connectors, anyone planning a large array of traditional hard drives or optical drives will quickly run into expansion limits.

General info:

CPU socket	AM5
chipset	B850
form factor	ATX
supports Wi-Fi	✓
Wi-Fi version	Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
Has Bluetooth	✓
Bluetooth version	5.4
HDMI version	HDMI 2.1
Easy to overclock	✓
has RGB lighting	✓
Easy to reset BIOS	✓
Has dual BIOS	✓
has aptX	✕
CPU sockets	1
Has integrated graphics	✕
warranty period	3 years
height	244 mm
width	305 mm
Has integrated CPU	✕

The Asus ROG Strix B850-A Gaming WiFi uses the AM5 socket with the B850 chipset and follows the standard ATX form factor, measuring 305 mm × 244 mm. It supports a single CPU and has no integrated processor or integrated graphics. Wireless connectivity is comprehensive, covering Wi-Fi 4 through Wi-Fi 7 (802.11be) alongside Bluetooth 5.4, though aptX audio over Bluetooth is not supported. The board includes RGB lighting, a dual BIOS for added resilience, and both easy BIOS reset and overclocking-friendly design. Video output is handled via an HDMI 2.1 port, and the board does not include a VGA or DVI connection. The product comes with a 3-year warranty.

Memory:

maximum memory amount	192GB
RAM speed (max)	8000 MHz
overclocked RAM speed	8000 MHz
memory slots	4
DDR memory version	5
memory channels	2
Supports ECC memory	✕

The board features four DDR5 memory slots arranged across two channels, with a maximum supported capacity of 192 GB. RAM speeds can reach up to 8000 MHz, which also represents the ceiling for overclocked configurations. ECC memory is not supported.

Ports:

USB 3.2 Gen 2 ports (USB-A)	2
USB 3.2 Gen 1 ports (USB-A)	4
USB 3.2 Gen 2 ports (USB-C)	1
USB 3.2 Gen 1 ports (USB-C)	0
USB 2.0 ports	2
USB 3.2 Gen 2x2 ports	1
USB 4 40Gbps ports	0
USB 4 20Gbps ports	0
Thunderbolt 4 ports	0
Thunderbolt 3 ports	0
has an HDMI output	✓
DisplayPort outputs	1
RJ45 ports	1
Has USB Type-C	✓
eSATA ports	0
DVI outputs	0
has a VGA connector	✕
PS/2 ports	0

The rear I/O provides a varied USB selection, including two USB 3.2 Gen 2 Type-A ports, four USB 3.2 Gen 1 Type-A ports, two USB 2.0 ports, one USB 3.2 Gen 2 Type-C port, and one USB 3.2 Gen 2x2 Type-C port. There are no USB 4, Thunderbolt 3, Thunderbolt 4, eSATA, PS/2, or USB 3.2 Gen 1 Type-C ports present. Display output is handled by an HDMI port and one DisplayPort output, while VGA and DVI connections are absent. Networking is covered by a single RJ45 port.

Connectors:

USB 3.2 Gen 1 ports (through expansion)	2
USB-C 3.2 Gen 2 ports (through expansion)	1
USB 2.0 ports (through expansion)	4
SATA 3 connectors	2
fan headers	6
USB 3.0 ports (through expansion)	2
M.2 sockets	4
Has TPM connector	✕
U.2 sockets	0
Has mSATA connector	✕
SATA 2 connectors	0

Internal connectivity includes four M.2 sockets and two SATA 3 connectors for storage, while SATA 2, U.2, and mSATA connections are absent. For USB expansion, the board offers two USB 3.2 Gen 1 headers, two additional USB 3.0 headers, one USB-C 3.2 Gen 2 header, and four USB 2.0 headers. Cooling is supported through six fan headers. There is no TPM connector on this board.

Expansion slots:

PCIe 4.0 x16 slots	1
PCIe 5.0 x16 slots	1
PCIe 3.0 x16 slots	0
PCIe x1 slots	0
PCI slots	0
PCIe 2.0 x16 slots	0
PCIe x4 slots	0
PCIe x8 slots	0

The board provides two full-length PCIe slots: one PCIe 5.0 x16 slot and one PCIe 4.0 x16 slot. There are no PCIe 3.0, PCIe 2.0, PCIe x8, PCIe x4, PCIe x1, or legacy PCI slots available.

Audio:

Signal-to-Noise ratio (DAC)	120 dB
audio channels	7.1
Has S/PDIF Out port	✓
audio connectors	2

The onboard audio supports 7.1-channel output and delivers a DAC signal-to-noise ratio of 120 dB. Two analog audio connectors are provided on the rear panel, and a S/PDIF Out port is available for digital audio passthrough.

Storage:

Supports RAID 1	✓
Supports RAID 10 (1+0)	✓
Supports RAID 5	✓
Supports RAID 0	✓
Supports RAID 0+1	✕

The board supports RAID 0, RAID 1, RAID 5, and RAID 10 (1+0) configurations, covering a range of performance and redundancy setups. RAID 0+1 is not supported.

Final Verdict

The Asus ROG Strix B850-A Gaming WiFi is a capable AM5 motherboard that covers the essentials of a modern enthusiast build without overreaching. Its four M.2 sockets, PCIe 5.0 support, and Wi-Fi 7 connectivity give it a forward-looking feature set that holds up well for high-throughput storage, current-generation graphics, and cable-free networking alike. The dual BIOS and overclocking-friendly design add a layer of confidence for users who like to tune their systems, while the 7.1-channel audio with a 120 dB SNR rounds out the package with a solid onboard sound solution. Where it falls short — notably the absence of ECC support, Thunderbolt connectivity, and limited SATA expansion — those gaps are unlikely to matter to its intended audience of desktop enthusiasts rather than workstation users. For an ATX build centered on the AM5 platform, the ROG Strix B850-A Gaming WiFi delivers a well-balanced specification set that suits its target use case reliably.