| Component |
Specification |
| Model |
PRIME B550M-A |
| CPU |
AMD AM4 Socket for AMD Ryzen™ 5000 Series/5000 G-Series/4000 G-Series/3000 Series Desktop Processors |
| Chipset |
AMD B550 |
| Memory |
4 x DIMM, Max. 128GB, DDR4 |
|
– 4866(O.C)/4800(O.C.)/4600(O.C)/4466(O.C.)/4400(O.C)/4333(O.C.)/4266(O.C.)/4200(O.C.) |
|
– 4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3333(O.C.)/3200/3000/2933/2800/2666/2400/2133 MHz |
|
– Dual Channel Memory Architecture |
|
– ECC Memory (ECC mode) support varies by CPU. |
| Graphics |
1 x D-Sub |
|
1 x DVI-D |
|
1 x HDMI 2.1 (4K@60HZ) |
|
*Graphics specifications may vary between CPU types. |
| Expansion Slots |
AMD Ryzen™ 5000 Series/3000 Series Desktop Processors: |
|
– 1 x PCIe 4.0 x16 (x16 mode) |
|
AMD Ryzen™ 5000 G-Series/4000 G-Series Desktop Processors: |
|
– 1 x PCIe 3.0 x16 (x16 mode) |
|
AMD B550 Chipset: |
|
– 2 x PCIe 3.0 x1 |
| Storage |
Total supports 2 x M.2 slot(s) and 4 x SATA 6Gb/s ports |
|
AMD Ryzen™ 5000 Series/3000 Series Desktop Processors: |
|
– 1 x M.2_1 socket 3 (PCIE 4.0 x4 and SATA modes) |
|
AMD Ryzen™ 5000 G-Series/4000 G-Series Desktop Processors: |
|
– 1 x M.2_1 socket 3 (PCIE 3.0 x4 and SATA modes) |
|
AMD B550 Chipset: |
|
– 1 x M.2_2 socket 3 (PCIE 3.0 x4 and SATA modes) |
|
– 4 x SATA 6Gb/s port(s), Support RAID 0, 1, 10 |
| LAN |
Realtek RTL8111H 1Gb Ethernet |
| Audio |
Realtek ALC887/897 7.1 Surround Sound High Definition Audio CODEC |
|
– Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking, up to 24-bit/192kHz playback |
|
– Audio Features: LED-illuminated design, Audio Shielding, Dedicated audio PCB layers, Premium audio capacitors |
| USB Ports |
Rear USB Port (Total 6) |
|
2 x USB 3.2 Gen 2 port(s) (Type-A) |
|
4 x USB 3.2 Gen 1 port(s) (Type-A) |
| Front USB Port (Total 6) |
2 x USB 3.2 Gen 1 port(s) (Type-A) |
|
4 x USB 2.0 port(s) (Type-A) |
| Software Features |
ASUS Exclusive Software: Armoury Crate, Aura Creator, Aura Sync, AI Suite 3, TurboV EVO, EPU, Digi+ VRM, Fan Xpert 2+, EZ update, ASUS CPU-Z, AI Charger, DAEMON Tools, Norton Anti-virus software (Free Trial for 60 days), WinRAR, UEFI BIOS, ASUS EZ DIY, ASUS 5X PROTECTION III, ASUS DIGI+ VRM, ASUS LANGuard, ASUS Overvoltage Protection, ASUS SafeSlot Core, ASUS Stainless-Steel Back I/O, ASUS Q-Design, ASUS Q-DIMM, ASUS Q-Slot, ASUS Thermal Solution, AURA Sync, ASUS Lighting Control |
| Back I/O Ports |
1 x PS/2 keyboard/mouse combo port(s) |
|
1 x DVI-D |
|
1 x D-Sub |
|
1 x HDMI |
|
1 x LAN (RJ45) port(s) |
|
2 x USB 3.2 Gen 2 (Type-A) |
|
4 x USB 3.2 Gen 1 (Type-A) |
|
3 x Audio jack(s) |
| Internal I/O Ports |
Multiple internal ports including CPU Fan, CPU OPT Fan, Chassis Fan, Aura RGB Strip Headers, Addressable Gen 2 header, USB connectors, M.2 sockets, SATA connectors, and more. |
| Accessories |
I/O Shield, 2 x SATA 6Gb/s cable(s), Supporting DVD, User manual, M.2 SSD screw package(s) |
| BIOS |
256 Mb Flash ROM, UEFI AMI BIOS |
| Manageability |
WOL by PXE |
| Operating System |
Windows® 10 64-bit |
| Form Factor |
mATX Form Factor |
|
9.6 inch x 9.6 inch (24.4 cm x 24.4 cm) |
