Asus PRIME B850-PLUS WIFI-CSM Motherboard, Socket AM5, AMD B850 Chipset, 4xDDR5 Up To 256GB 8000+MT/s OC, 3xM.2 and 4xSATA 6Gb/s, Wi-Fi 6E and Bluetooth V5.3
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Shipping
We offer fast and reliable shipping for all our items. Orders are processed within 1-2 business days and shipped via standard delivery, which typically takes 2-5 business days.
Return policy
- We do not accept returns under any circumstances.
- We offer exchanges only if the item is returned in its original, sealed packaging and unused within 2 days of delivery.
- Opened or used items are not eligible for exchange.
- Items purchased as pre-order or back-order cannot be exchanged or returned under any condition.
Product Features
Socket AM5 Ryzen Support: Build around AMD Socket AM5 for AMD Ryzen 9000, 8000, and 7000 Series Desktop Processors. This gives you a clear upgrade path across multiple Ryzen generations while keeping your platform consistent. Support for up to AMD 170W CPU helps you pair the board with higher-power desktop CPUs when your build demands it.
DDR5 Memory Headroom: Run up to 256GB across 4 DIMM slots with dual channel memory architecture for responsive everyday performance. DDR5 support up to 8000+MT/s (OC) with Ryzen 9000, 8000, and 7000 Series Processors helps you tune for speed when you want extra performance. EXPO and AEMP profiles make it easier to set memory behavior without spending all day tweaking settings.
Flexible Storage and Expansion: Set up fast storage with support for 3 M.2 slots plus 4 SATA 6Gb/s ports, so you can mix NVMe drives and SATA devices as your needs grow. M.2 support spans PCIe 5.0 x4 and PCIe 4.0 modes depending on CPU and slot, giving you options for different drive tiers. Expansion includes PCIe x16 slots across PCIe 5.0, 4.0, and 3.0 generations based on CPU and chipset, helping you plan for GPUs and add-in cards.
Built-In Connectivity for a Clean Setup: Connect the way you prefer with Wi-Fi 6E (2x2, 802.11ax) and Bluetooth v5.3 for wireless peripherals and networking. Realtek 2.5Gb Ethernet adds a fast wired option for stable downloads and low-latency use. Plenty of USB ports on the rear and front headers, including USB Type-C, make it easy to plug in modern devices without adapters.
Product Specifications
Model: PRIME B850-PLUS WIFI-CSM
Socket: AM5
CPU Support: AMD Ryzen 9000 and 8000 and 7000 Series Desktop Processors
Max CPU Support: Up to AMD 170W CPU
Chipset: AMD B850 Chipset
Memory Slots: 4 x DIMM
Max Memory: 256GB
Memory Type: DDR5
Memory Speed: Up to 8000+MT/s (OC) with Ryzen 9000 and 8000 and 7000 Series Processors
ECC Support: ECC and Non-ECC Un-buffered DIMM
Memory Architecture: Dual channel memory architecture
Memory Profiles: AMD Extended Profiles for Overclocking (EXPO), ASUS Enhanced Memory Profile (AEMP)
Display Outputs: 1 x DisplayPort, 1 x HDMI port
DisplayPort: Supports max. 8K@30Hz as specified in DisplayPort 1.4
HDMI: Supports 4K@60Hz as specified in HDMI 2.1
Expansion Slots (Ryzen 9000 and 7000): 1 x PCIe 5.0 x16 slot (supports x16 mode)
Expansion Slots (Ryzen 8000): 1 x PCIe 4.0 x16 slot (supports x8/x4 mode)
Expansion Slots (Chipset): 1 x PCIe 4.0 x16 slot (support x4 mode), 2 x PCIe 3.0 x16 slots (support x1 mode)
Storage Support: Supports 3 x M.2 slots and 4 x SATA 6Gb/s ports
M.2 (Ryzen 9000 and 7000): M.2_1 2280 PCIe 5.0 x4, M.2_2 2280 PCIe 4.0 x4
M.2 (Ryzen 8000): M.2_1 2280 PCIe 4.0 x4, M.2_2 2280 PCIe 4.0 x4/x2
M.2 (Chipset): M.2_3 2242/2260/2280/22110 PCIe 4.0 x2
SATA: 4 x SATA 6Gb/s ports
RAID: AMD RAIDXpert2 Technology, Ryzen 9000: RAID 0/1/5/10, Ryzen 8000: RAID 0/1, Ryzen 7000: RAID 0/1/10
Ethernet: 1 x Realtek 2.5Gb Ethernet, ASUS LANGuard
Wireless: Wi-Fi 6E, 2x2 Wi-Fi 6E (802.11ax), Supports 2.4/5/6GHz frequency band
Bluetooth: Bluetooth v5.3
Rear USB (Total): 8 ports
Rear USB 10Gbps: 4 ports (3 x Type-A + 1 x USB Type-C)
Rear USB 5Gbps: 2 ports (2 x Type-A)
Rear USB 2.0: 2 ports (2 x Type-A)
Front USB (Total): 9 ports
Front USB Type-C: 1 x USB 5Gbps connector (supports USB Type-C)
Front USB 5Gbps: 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports
Front USB 2.0: 3 x USB 2.0 headers support 6 additional USB 2.0 ports
USB Type-C Power Delivery Output: Max. 5V/3A
Audio: Realtek 7.1 Surround Sound High Definition Audio CODEC
Audio Playback: Supports up to 24-Bit/192 kHz playback
Audio Features: Audio Shielding, Premium audio capacitors, Dedicated audio PCB layers
Back Panel I/O: USB Type-C (10Gbps) x1, USB Type-A (10Gbps) x3, USB Type-A (5Gbps) x2, USB 2.0 Type-A x2, DisplayPort x1, HDMI x1, Wi-Fi module x1, Realtek 2.5Gb Ethernet x1, Audio jacks x3, BIOS FlashBack button x1
Internal Fan Headers: 1 x 4-pin CPU Fan, 1 x 4-pin CPU OPT Fan, 1 x 4-pin AIO Pump, 4 x 4-pin Chassis Fan
Internal Power Connectors: 1 x 24-pin Main Power, 1 x 8-pin +12V CPU Power, 1 x 4-pin +12V CPU Power
Internal Storage Connectors: 3 x M.2 slots (Key M), 4 x SATA 6Gb/s ports
Internal USB: 1 x USB 5Gbps connector (supports USB Type-C), 1 x USB 5Gbps header (2 additional USB 5Gbps), 3 x USB 2.0 headers (6 additional USB 2.0)
Internal Misc: 3 x Addressable RGB Gen 2 headers, 1 x Clear CMOS header, 1 x Chassis Intrusion header, 1 x COM Port header, 1 x Front Panel Audio header (F_AUDIO), 1 x S/PDIF Out header, 1 x SPI TPM header (14-1 pin), 1 x 10-1 pin System Panel header, 1 x Thunderbolt (USB4) header
Special Features: ASUS 5X PROTECTION III (DIGI+ VRM, LANGuard, Overvoltage protection, SafeSlot, Stainless-steel back I/O)
Q-Design: Q-Antenna, Q-Dashboard, Q-DIMM, Q-LED Core, Q-Slot
Thermal Solution: Flexible M.2 heatsink, VRM heatsink design
EZ DIY: BIOS FlashBack button, BIOS FlashBack LED, Pre-mounted I/O shield, SafeSlot
Lighting: Aura Sync, Addressable RGB Gen 2 headers