Asus Prime B850M-A-CSM AM5 Motherboard - 4x DDR5, 3x M2, 4x Sata III, PCIe 3.0, 4.0, USB 2.0, 3.2, USB-C, RJ-45, HDMI, DisplayPort, MicroATX

ASUS Prime motherboards are expertly designed to make the most of the potential of AMD Ryzen 9000 series processors. The PRIME B850M-A-CSM motherboard gives users and DIY PC builders various performance optimizations through intuitive software and firmware features. It is designed to be compatible with advanced AI PCs, offering the power and connectivity needed for demanding AI applications.
ASUS Control Center Express
ASUS Control Center Express is integrated IT monitoring and management software designed to streamline deployments, simplify IT operations, and improve productivity with comprehensive control and intuitive features. ASUS Control Center Express supports over 100 ASUS motherboards to offer a high-quality, total-cost-of-ownership-optimized solution for your company's needs.
AI Solutions
ASUS AI Solutions include AI Advisor as your expert technical advisor with PC performance expertise.
Digital power design
The PRIME B850M-A-CSM features an 8+2+1 phase power design with discrete MOSFETs, ensuring efficient, stable power delivery for AMD processors as well as consistent performance for everyday use.
Enhanced DDR5 performance
Comprehensive memory tuning options are the cornerstone of PRIME motherboards. The PRIME B850M-A-CSM maximizes the potential of your DDR5 modules, from basic kits to high-speed kits.
Three M.2 slots (up to 128 Gbps)
The PRIME B850M-A-CSM offers a total of three M.2 slots, including one supporting data transfer speeds of up to 128 Gbps via PCIe 5.0 and two supporting PCIe 4.0. This enables faster boot times and application loading with OS or application drives.
ASUS Fan Xpert 2+
ASUS Fan Xpert 2+ software offers full fan control. Auto-Tuning mode intelligently configures all parameters with a single click. It also includes an Extreme Quiet mode that reduces chassis fan speed below the default minimum to keep the system absolutely silent during light tasks. Fans can also be controlled via the UEFI BIOS.
Specifications:
-Socket: AMD AM5
-Chipset: AMD B850
-Compatible processors: Ryzen 9000 / 8000 / 7000 Series
-Memory: 4 x DDR5 DIMM (up to 256 GB), ECC/Non-ECC, up to 8000+ MT/s (OC)
-Profile compatibility: AMD EXPO, ASUS AEMP
-Integrated graphics:
-2 x DisplayPort 1.4 (up to 8K @ 30 Hz)
-1 x HDMI 2.1 (up to 4K @ 60 Hz)
-Expansion slots:
-1 x PCIe 5.0 x16 (Ryzen 9000/7000)
-1 x PCIe 4.0 x16 (Ryzen 8000, x8/x4 mode)
-1 x PCIe 4.0 x16 (x1 mode, from chipset)
-Storage:
-3 x M.2 (PCIe 5.0/4.0 depending on CPU)
4 x SATA 6 Gb/s
-RAID: 0/1/5/10 (Ryzen 9000), 0/1 (Ryzen 8000), 0/1/10 (Ryzen 7000)
-Ethernet: 1 x Realtek 2.5Gb with ASUS LANGuard
-Audio: Realtek 7.1, up to 24-bit/192 kHz, premium capacitors, shielding and dedicated PCB layers
-Rear USB (8):
-2 x USB 3.2 Gen2 (10 Gbps, Type-A)
-2 x USB 3.2 Gen1 (5 Gbps, Type-A)
-4 x USB 2.0 (Type-A)
-Front USB (7):
-1 x USB 3.2 Gen1 Type-C connector (5 Gbps)
-1 x USB 3.2 Gen1 header (2 ports)
-2 x USB 2.0 headers (4 ports)
-Internal connectors:
-1 x CPU Fan, 1 x CPU OPT Fan, 1 x AIO pump
-3 x chassis fans
-3 x addressable Gen 2 RGB
-1 x Clear CMOS, 1 x SPI TPM, 1 x COM, 1 x S/PDIF
-Special features:
-ASUS 5X PROTECTION III, DIGI+ VRM, SafeSlot, LANGuard
Q-Design: Q-DIMM, Q-LED Core, Q-Slot
-EZ DIY: BIOS FlashBack, pre-mounted I/O Shield
-Aura Sync: addressable Gen2 RGB
-Included software:
-Armoury Crate, Fan Xpert 2+, Aura Creator, TurboV Core
-AI Advisor, ASUS CPU-Z, Norton 360 (60 days), WinRAR (40 days)
-BIOS: UEFI AMI, 256 Mb Flash ROM
-Accessories:
-2 x SATA cables
-2 x M.2 screw packs
-1 x M.2 rubber pad
-1 x quick start guide, 1 x ACC Express activation card
-Compatible operating systems: Windows 11 / 10 (64-bit)
-Form factor: microATX (24.4 x 24.4 cm)