3 st Asrock Rack B450d4u-v1lq5
great option for Proxmox or XCP-ng cluser

A custom variant of ASRock Rack B450d4u-v1l AMD AM4 based server motherboard, come with integrated ASPEED AST2510 graphics.

Support Ryzen 3000 and Ryzen 5000 processors with installed L2.11 bios. Processors with igpu are not supported

Older bios can support Ryzen 2000 series including igpu. (Upon request i can update to older bios)

Tested with Ryzen 5600x, Ryzen 3600, 3700x, 2200g.

4 Dimm slots
1x PCIe3.0 x 16, support bifurcation( x4,x4,x4,x4)
1x PCIe 3.0x8 (x4 if first slot use full x16)
1x Intel i210 Ethernet
4x Sata III ( no m.2 or nvme)
Backplane included

Ref link V1L variant: information valid to v1L variant only.

https://download.asrock.com/Manual/B450D4U-V1L.pdf