ASUS Prime series motherboards are expertly engineered to unleash the full potential of AMD Ryzen™ 9000 series processors. The PRIME B850-PLUS-CSM motherboard provides users and PC DIY builders with a range of performance optimizations via intuitive software and firmware features. It’s designed to be Advanced AI PC-ready, offering the power and connectivity needed for demanding AI applications.
Support OC
AMD
Memories Type Support
DDR5
Number of M.2 Support
3
Series Motherboard
B
MODEL SERIES
PRIME
MANUFACTURER
Asus
COLOR
Black & White
CPU SOCKET
AMD Socket AM5
Chipset
AMD B850 Chipset
M.2 Slots
Supports 3 x M.2 slots
SATA PORTS
4 x SATA 6Gb/s ports
RAM SLOTS
4 x DIMM slots, max. 256GB, DDR5 Supports up to 8000+MT/s (OC) with Ryzen™ 9000 & 8000 & 7000 Series Processors, ECC and Non-ECC Un-buffered DIMM*
PCIE Slot
1 x PCIe 5.0 x16 slot (supports x16 mode)
Audio
3 x Audio jacks
USB PORTS
Rear USB (Total 8 ports) 4 x USB 10Gbps port(s) (3 x Type-A + 1 x USB Type-C®) 2 x USB 5Gbps ports (2 x Type-A) 2 x USB 2.0 ports (2 x Type-A) Front USB (Total 7 ports) 1 x USB 5Gbps connector (supports USB Type-C®) 1 x USB 5Gbps header supports 2 additional USB 5Gbps ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports * USB Type-C® power delivery output: max. 5V/3A