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Asus ROG STRIX B850-A GAMING WIFI (Socket AM5) DDR5 ATX Motherboard

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Socket AM5, B850 Chipset, Supports 7000/8000/9000 series AMD Ryzen, 4x DIMM Slots, DDR5 8000MHz (OC), PCIe Gen 5, 4x SATA 6Gb/s connectors, 5x M.2 Slot, 5GB LAN, USB Type-C, ATX
£319.00 (incl. VAT)
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fiber_manual_record Pre order
SKU MOT-ASU-03842
EAN 4711387772676
MPN 90MB1J50-M0EAY0
MANUFACTURER Asus
Feature Details
CPU AMD Socket AM5 for AMD Ryzen™ 9000 & 8000 & 7000 Series Desktop Processors
* Refer to support site for CPU support list.
Chipset AMD B850 Chipset
Memory 4 x DIMM slots, max. 192GB, DDR5
Supports up to 8000+MT/s (OC) with Ryzen™ 9000, 8000, & 7000 Series Processors
ECC and Non-ECC, Un-buffered DIMM
Dual channel memory architecture
Supports AMD Extended Profiles for Overclocking (EXPO™)
ASUS Enhanced Memory Profile (AEMP)
* Supported memory types, data rate, and number of DRAM modules vary by configuration.
** Non-ECC, un-buffered DDR5 memory supports On-Die ECC function.
Graphics 1 x DisplayPort (max. 8K@30Hz, DP 1.4)
1 x HDMI™ port (max. 4K@60Hz, HDMI 2.1)
* VGA resolution support depends on processors' or graphic cards' resolution.
Expansion Slots AMD Ryzen™ 9000 & 7000 Series: 1 x PCIe 5.0 x16 slot with Q-Release Slim
AMD Ryzen™ 8000 Series: 1 x PCIe 5.0 x16 slot with Q-Release Slim (supports PCIe 4.0 x8/x4 mode)
AMD B850 Chipset: 1 x PCIe 4.0 x16 slot (supports x4 mode)
* PCIEX16(G4) slot shares bandwidth with M.2_3.
** Specifications vary by CPU type.
Storage 4 x M.2 slots and 2 x SATA 6Gb/s ports
M.2_1 (Ryzen™ 7000 & 9000): PCIe 5.0x4 mode
M.2_2 (Ryzen™ 7000 & 9000): PCIe 5.0 x4 mode
M.2_1 (Ryzen™ 8000): PCIe 4.0x4 mode
M.2_2 (Ryzen™ 8000): PCIe 4.0 x4/x2 mode
AMD B850: M.2_3 and M.2_4 support PCIe 4.0 x4
* RAID support for PCIe RAID 0/1/5/10 and SATA RAID 0/1.
** M.2_3 slot shares bandwidth with PCIEX16(G4).
Ethernet 1 x Intel® 2.5Gb Ethernet
ASUS LANGuard
Wireless & Bluetooth® Wi-Fi 7 (802.11be), 2x2 (2.4/5/6GHz bands)
Bluetooth® v5.4
* Windows 11 (24H2 or later) required for full Wi-Fi 7 functionality.
USB Rear: 1 x USB 20Gbps (Type-C), 3 x USB 10Gbps (2 Type-A + 1 Type-C), 4 x USB 5Gbps (Type-A), 2 x USB 2.0 (Type-A)
Front: 1 x USB 10Gbps (Type-C), 1 x USB 5Gbps header (2 additional ports), 2 x USB 2.0 headers (4 additional ports)
Audio ROG SupremeFX 7.1 Surround Sound HD Audio CODEC ALC4080
Impedance sense, jack-detection, multi-streaming, and high-quality audio features.
Special Features Extreme Engine Digi+, ASUS Q-Design, Aura Sync, AI Overclocking Guide, BIOS FlashBack™, Clear CMOS button, M.2 Q-Latch/Release/Slide, and more.
Accessories 2 x SATA cables, ASUS WiFi Q-Antenna, cable ties, M.2 Q-Latch package, ROG key chain, ROG Strix stickers, USB drive with drivers/utilities, and quick start guide.
Operating System Windows 11
Form Factor ATX (12 inch x 9.6 inch / 30.5 cm x 24.4 cm)
Motherboard
Motherboard Chipset AMD B850
Built-In I/O Shield Yes
Lighting
Lighting Yes
Form Factor
Motherboard formfactor ATX
CPU
CPU Manufacturer AMD
CPU Socket AM5
Dimensions
Length / Depth 244 mm
Width 305 mm
Colour
Primary Colour White
Wi-Fi & LAN
LAN Yes
LAN Ports 1x 2.5 Gbit/s
Wi-Fi / Bluetooth Yes
Wi-Fi Standard Wi-Fi 7
Bluetooth Standard 5.4
External Ports
USB 3.2 (external) Type C 1
USB 3.1 (external) Type C 1
USB 3.1 (external) Type A 2
USB 3.0 (external) Type A 4
USB 2.0 (external) Type A 2
Display Connectors HDMI (1x), Display Port (1x)
Fan Header
4 Pin Fan Connectors 7
Memory
Max. Memory 192 GB
Memory Type DDR5
Memory Form Factor DIMM
System Memory Subtype UDIMM
Max. Memory Speed (OC) 8000 MT/s
EEC Support Yes
Memory slots 4x
Performance Profile AMD EXPO
Expansion Slots
PCIe x16 slots (total) 2
PCIe 5.0 x16 mechanical slot 1
PCIe 4.0 x16 mechanical slot 1
Internal Ports
CPU Power Supply 2x 8-Pin
USB4 (internal) Header 1
USB 3.0 / 3.1 / 3.2 (internal) Type C Header 1
USB 3.0 / 3.1 / 3.2 (internal) Type C Possible Ports 1
USB 3.0 (internal) Header 1
USB 3.0 (internal) Possible Ports 2
USB 2.0 (internal) Header 1
USB 2.0 (internal) Possible Ports 2
RGB / LED connectors 3x Digital RGB (3-Pin 5VDG)
Front Panel Audio Header Yes
Cooling
Backplate Yes
M.2 Heatsinks Yes
VRM Heatsinks Yes
Storage Ports
M.2 PCIe 4.0 x4 2
M.2 PCIe 5.0 x4 1
SATA 6G (internal) 2
Audio
Soundchip Realtek ALC4080
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£319.00 (incl. VAT)
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