Asrock B550M-ITX/ac, AM4, 90-MXBDH0-A0UAYZ

shape factor mini-ITX
chipset AMD B550
CPU-Compatibility Ryzen 4000G, Ryzen 3000, without TDP limitation (Manufacturer-list)
VRM 8 real phases (6+2), PWM-Controller: RAA 229004 (max. 8 phases)
MOSFETs CPU 6x 50A SiC654
MOSFETs SoC 2x 50A SiC654
RAM 2x DDR4 DIMM, dual PC4-37866U/DDR4-4733 (OC), max. 64GB (UDIMM)
Extension slots 1x PCIe 4.0 x16, 1x M.2/M-Key (PCIe 4.0 x4/SATA, 2280), 1x M.2/E-Key (PCIe, 2230, occupied with WiFi+BT module)
external connectors 1x HDMI 2.1 (iGPU), 1x DisplayPort 1.4 (iGPU), 1x USB-C 3.0, 3x USB-A 3.0, 2x USB-A 2.0, 1x Gb LAN (Realtek RTL8111H), 3x jack, 1x PS/2 Combo
Internal connectors 1x USB 3.0 Header (2x USB 3.0), 1x USB 2.0 header (2x USB 2.0), 4x SATA 6Gb/s (B550)
Header Cooling 1x CPU fan 4-Pin, 2x fan/pump 4-Pin
Header Lighting 1x 4-Pin RGB (+12V/G/R/B, max. 3A), 1x 3-Pin ARGB (+5V/DATA/GND, max. 3A)
buttons/Switches not available
Audio 7.1 (Realtek ALC887)
onboard-Graphics iGPU
Wireless WLAN 802.11a/b/g/n/ac (Intel), Bluetooth 4.2
RAID level 0/1/10 (B550)
Multi-GPU not available
Power connections 1x 24-Pin ATX, 1x 8-Pin EPS12V
Lighting not available
BIOS 1x 32MB (256Mb)
Special features audio+solid capacitors, 1x M.2-passive cooler
Warranty three years (handling by merchant)