ASUS Prime B550M-K ARGB, AMD B550, AM4, DDR4, 90MB1GC0-M0EAY0

Form factor µATX
Plinth AMD AM4
Chipset AMD B550
CPU Compatibility Ryzen 5000G, Ryzen 5000, Ryzen 4000G, Ryzen 3000, Ryzen 5000)
RAM 2x DDR4 DIMM, dual PC4-40800U/DDR4-5100 (OC), max. 64GB (UDIMM)
Expansion Slots 1x PCIe 4.0 x16, 1x PCIe 3.0 x1, 1x M.2/M-Key (PCIe 4.0 x4/SATA, 2280/2260/2242), 1x M.2/M-Key (PCIe 3.0 x4/SATA, 22110/2280/2260/2242)
External connections 1x HDMI 2.1 (iGPU), 1x DisplayPort 1.4 (iGPU), 4x USB-A 3.0 (5Gb/s), 2x USB-A 2.0 (480Mb/s), 1x Gb LAN (Realtek), 3x Jack, 1x PS/2 Combo
Internal connections 1x USB-C 3.0 Key-A header (5Gb/s), 1x USB 3.0 header (5Gb/s, 2x USB 3.0), 2x USB 2.0 header (480Mb/s, 4x USB 2.0), 4x SATA 6Gb/s (B550), 1x serial, 1x TPM header, 1x S/PDIF header, 1x speaker header, 1x COM debug header
Header Cooling 1x CPU fan 4-pin, 2x fan 4-pin
Header Lighting 3x 3-Pin ARGB (+5V/DATA/GND, max. 3A, ASUS Gen2)
Buttons/Switches N/A
Audio 7.1 (Realtek ALC887)
Graphic iGPU
Wireless N/A
RAID Level 0/1/10 (B550)
Multi-GPU N/A
Power connections 1x 24-pin ATX, 1x 8-pin EPS12V
VRM 5 virtual phases (3+2), 5 real phases (3+2), PWM controller: ASP1106 (RT3667BE, max. 6 phases)
MOSFETs CPU (VCORE) 3x 58A SiRA14DP/6x SiRA12DP
MOSFETs SoC (VCCGT) 4x 58A SiRA14DP/4x SiRA12DP
Lighting N/A
BIOS 1x 16MB (128Mb)
Particularities Audio+solid capacitors, ECC support, onboard TPM 2.0 support (AMD fTPM, see additional manufacturer's link), White Build compatible (PCB primary black)