Supermicro H13SSL-NT Server Motherboard vs ASRock Rack SPC621D8 Server Motherboard

Buy the Supermicro H13SSL-NT for a new single-socket build on AMD EPYC 9004 or 9005: it gives you PCIe 5.0, DDR5, 10GbE on board and a modern AST2600 BMC. Buy the ASRock Rack SPC621D8 if you already own a 3rd Gen Xeon Scalable CPU or need many SATA drives, since it offers 13 SATA ports and four full-length PCIe 4.0 x16 slots. The Supermicro is the newer platform with more memory headroom and faster I/O; the ASRock is the cheaper way into a mature Intel platform with more storage ports. Owners of both report solid server-grade build, and the usual complaints are BIOS quirks and sparse consumer-style documentation.

• Choose the Supermicro H13SSL-NT if you are building around an AMD EPYC 9004 or 9005 CPU and want PCIe 5.0, DDR5 and 10GbE without add-in cards.
• Choose the ASRock Rack SPC621D8 if you already have a 3rd Gen Xeon Scalable chip or need many SATA drives and four x16 slots.