| CPU | |
| Installed Processors (Max): | 0 (1) |
| Supported Processor Manufacturer: | AMD |
| Supported Processors: | 3rd Gen AMD Ryzen Processors |
| 64-bit Support: | Yes |
| Socket: | AM4 |
| Rear Panel I/O Ports | |
| USB Ports: | 2 x USB 3.1 4 x USB 3.0 |
| HDMI Port: | 1 x HDMI 2.1 |
| VGA Port: | 1 x D-Sub |
| Internal I/O Connectors | |
| SATA Connectors: | 4 x SATA III |
| USB Connectors: | 1 x USB 3.0 header (supports 4 ports) 2 x USB 2.0 headers (supports 4 ports) |
| Speaker: | 1 x Speaker header |
| Memory | |
| Memory Bus Speed: | 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 |
| Memory Type: | DDR4 |
| Motherboard | |
| Chipset Manufacturer: | AMD |
| Northbridge: | B550 |
| RAID Supported: | Yes |
| RAID Format: | RAID 0, 1, 10 |
| SATA Supported: | Yes |
| Rear Panel I/O Ports | |
| Keyboard/Mouse Combo Port: | 1 x PS/2 |
| RJ-45 Ports: | 1 x RJ-45 |
| Digital Port: | 1 x DVI-D |
| Audio Line In Ports: | 1 x 3.5mm Jack |
| Audio Line Out Ports: | 1 x 3.5mm Jack |
| Microphone In Port: | 1 x 3.5mm Jack |
| Internal I/O Connectors | |
| Front Panel Connectors: | 1 x Front Panel 1 x Front Audio |
| Cooling Fan Support: | 1 x CPU fan header 2 x Chassis fan headers |
| S/PDIF Connectors: | 1 x S/PDIF Out header |
| Serial Connectors: | 1 x COM header |
| TPM Header: | 1 x SPI TPM header |
| Power Connector Port: | 1 x 20+4-pin ATX 1 x 4+4-pin EPS |
| Other Connectors: | 1 x M.2, Socket 3, M Key (Type 2242/2260/2280/22110) 1 x M.2, Socket 3, M Key (Type 2242/2260/2280) |
| Expansion | |
| Number of PCI Express Slots: | 1 x PCI Express 4.0 x16 2 x PCI Express 3.0 x1 |
| Memory | |
| Maximum RAM: | 128 GB |
| Memory Slot: | 4 x DIMM |
| Graphics Device | |
| Integrated Graphics Supported: | Yes |
| Sound | |
| Integrated Sound: | Realtek ALC887 |
| Warranty | |
| Warranty: | 3 Years |
| Network | |
| Integrated Network: | Realtek RTL8111H |
| Network Speeds Supported: | 10/100/1000 Mbps |
| Wireless LAN: | No |
| Bluetooth: | No |
| System Requirements | |
| Operating Systems Supported: | Microsoft Windows 10 64-bit |
| System | |
| BIOS: | 256 Mb Flash ROM, UEFI AMI BIOS |
| Jumpers: | 1 x Clear CMOS |
| Software Included: | Yes |
| Drivers: | Yes |
| Physical | |
| Form Factor: | MicroATX Motherboard |
| In The Box: | PRIME B550M-K Motherboard User Manual I/O Shield 2 x SATA Cables Support DVD 1 x M.2 Screw Package |
| Width: | 244 mm |
| Length: | 244 mm |








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