| General | |
|---|---|
| Model | PRIME B550M-K |
| Chipset | AMD B550 |
| Form Factor | mATX 9.6 x 9.6 inches (24.4 x 24.4 cm) |
| CPU Support | |
| Supported CPUs | AMD Ryzen 5000 Series / 4000 G-Series / 3000 Series *Refer to ASUS website for CPU support list |
| Memory | |
| Slots / Capacity | 4× DIMM, Max 128GB, Dual Channel |
| Supported Speeds | 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 *ECC support depends on CPU *Refer to QVL list on ASUS website |
| Graphics Output | |
| Ports | 1× HDMI 2.1 (4K@60Hz), 1× D-Sub, 1× DVI-D *Graphics availability depends on CPU |
| Expansion Slots | |
| Slots | 1× PCIe 4.0 x16 (x16 mode) 1× PCIe 3.0 x16 2× PCIe 3.0 x1 |
| Storage | |
| M.2 Slots | M.2_1: 2242/2260/2280/22110, PCIe 4.0 x4 & SATA M.2_2: 2242/2260/2280, PCIe 3.0 x4 & SATA |
| SATA Ports | 4× SATA 6Gb/s, RAID 0/1/10 |
| Networking | |
| LAN | Realtek RTL8111H 1GbE, ASUS LANGuard |
| Audio | |
| Codec | Realtek ALC887/897 7.1 Surround, 24-bit/192kHz Audio shielding, premium capacitors |
| USB Ports | |
| Rear I/O | 2× USB 3.2 Gen2 Type-A 4× USB 3.2 Gen1 Type-A |
| Internal Headers | USB 3.2 Gen1: supports 2 ports USB 2.0: supports 4 ports |
| Back I/O Ports | |
| Ports | 2× USB 3.2 Gen2 (Type-A) 4× USB 3.2 Gen1 1× D-Sub 1× DVI-D 1× HDMI 1× PS/2 combo 1× LAN (RJ45) 3× Audio jacks |
| Internal I/O | |
| Headers | 1× USB 3.2 Gen1 header 2× USB 2.0 headers 4× SATA 6Gb/s 1× CPU Fan 2× Chassis Fan 1× TPM header 1× Front panel audio (AAFP) 1× COM header 1× Clear CMOS 1× 24-pin ATX power 1× 8-pin CPU power 2× M.2 sockets |
| Software / BIOS | |
| Software | Armoury Crate, AI Suite 3, TurboV EVO, EPU, Digi+ VRM, Fan Xpert 2+, EZ Update, ASUS CPU-Z, AI Charger, DAEMON Tools, Norton AV (Trial), WinRAR |
| BIOS | 256Mb Flash ROM, ASUS UEFI BIOS, EZ Flash 3, CrashFree BIOS 3 |
| Accessories | |
| Included | 1× M.2 screw kit 2× SATA cables I/O shield User manual Support DVD |