Supermicro X12SPA-TF Server Motherboard vs ASRock Rack SPC621D8 Server Motherboard

Both boards run 3rd Gen Xeon Scalable on the C621A chipset, so the split is memory capacity and slot count against size and onboard management. The Supermicro X12SPA-TF is the heavier build: 16 DIMM slots for up to 4TB and four PCIe 4.0 x4 M.2 slots, in a larger E-ATX board. The ASRock Rack SPC621D8 is the more compact ATX board with 8 DIMMs, 13 SATA ports, dual 1GbE and an ASPEED AST2500 BMC for IPMI remote management. Pick the Supermicro for memory-dense virtualization or in-memory databases; pick the ASRock Rack for storage-heavy builds and headless remote administration.

• Choose the Supermicro X12SPA-TF if you need maximum memory density, four M.2 drives, or a board that fits a large E-ATX server chassis.
• Choose the ASRock Rack SPC621D8 if you want a standard ATX board with onboard IPMI, dual LAN and many SATA ports for a storage server.