619-444-9469

B550M-A/CSM

$155.24

FORM FACTOR: mATX
SOCKET TYPE: AM4

Model PRIME B550M-A/CSM
Supported CPU
CPU Socket Type  AM4
CPU Type BIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASUS website for CPU support list.
Chipsets
Chipset  AMD B550
Memory
Number of Memory Slots 4x288pin (DDR4)
Memory Standard 3rd Gen AMD Ryzen Processors
DDR4 4600(O.C)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory *
3rd Gen AMD Ryzen with Radeon Graphics Processors
DDR4 4800(O.C.)/ 4600(O.C)/ 4466(O.C.)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory *
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported 128GB
Channel Supported  Dual Channel
Expansion Slots
PCI Express 4.0 x16 3rd Gen AMD Ryzen Processors
1 x PCIe 4.0 x16 (x16 mode)
3rd Gen AMD Ryzen with Radeon Graphics Processors
1 x PCIe 3.0 x16 (x16 mode)
PCI Express x1 AMD B550 Chipset
2 x PCIe 3.0 x1 slots
* Support PCIe bifurcation for RAID on CPU function.
Storage Devices
SATA 6Gb/s  4 x SATA 6Gb/s
M.2 3rd Gen AMD Ryzen Processors:
1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110 (PCIE 4.0 x4 and SATA modes) storage devices support
3rd Gen AMD Ryzen with Radeon Graphics Processors:
1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110 (PCIE 3.0 x4 and SATA modes) storage devices support
AMD B550 Chipset:
1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support
SATA RAID 0/1/10
Onboard Video
Onboard Video Chipset  Supported only by CPU with integrated graphic:
1 x D-Sub
1 x DVI-D
1 x HDMI 2.1 (4K@60HZ)
Onboard Audio
Audio Chipset  Realtek ALC887
Audio Channels  7.1 Channels
* A chassis with an HD audio module in the front panel is required to support 7.1-channel audio output.
Onboard LAN
LAN Chipset Realtek RTL8111H
Max LAN Speed 10/100/1000Mbps
Rear Panel Ports
Back I/O Ports 2 x USB 3.2 Gen 2 ports (2 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
1 x D-Sub port
1 x DVI-D port
1 x HDMI port
1 x Realtek RTL8111H 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 Keyboard/Mouse combo port
Internal I/O Connectors
Onboard USB 1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
Other Connectors 1 x CPU Fan connector(s)
1 x CPU OPT Fan connector(s)
2 x Chassis Fan connector(s)
2 x Aura RGB Strip Headers
1 x Addressable Gen 2 header(s)
1 x SPI TPM header
1 x S/PDIF out header(s)
1 x Front panel audio connector(s) (AAFP)
1 x Clear CMOS jumper(s)
1 x System panel connector
1 x COM port header
1 x Speaker connector
Physical Spec
Form Factor Micro ATX
LED Lighting RGB
Dimensions (W x L) 9.6" x 9.6"
Power Pin 1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector