ASRock Rack SP2C621D16-2L+ server motherboard LGA 4189 dual socket 16 DDR4 3200 14 SATA 2 SlimSAS 1 M.2 2 1GbE

Dual-Socket EEB Server Board

The ASRock Rack SP2C621D16-2L+ is an EEB form-factor motherboard built for dual Intel Xeon processors in the LGA 4189 socket. It provides sixteen DDR4 3200 slots across both CPUs and uses the Intel C621A chipset. This board targets high-density compute or storage nodes that need large memory capacity and many drive connections in a 12 by 13 inch footprint.

Suits Memory-Intensive Dual-CPU Builds

This board suits builders assembling dual-socket servers that require up to sixteen RDIMM, LRDIMM or Intel Optane Persistent Memory modules. It is not for single-socket systems, for chassis that cannot accept the EEB dimensions, or for workloads that need 10 GbE or faster onboard networking. Buyers who want more than fourteen SATA ports or more than two SlimSAS connectors should look at alternative platforms.

Sixteen DDR4 3200 Slots Decide Fit

The single specification that decides compatibility is the sixteen 288-pin DDR4 slots running at 3200 MT/s. Memory must be DDR4; other generations will not fit or function. The board also delivers fourteen SATA 6.0 Gb/s ports with RAID 0/1/5/10, two SlimSAS PCIe 4.0 x8 links, one M.2 PCIe 4.0 x4 slot, five PCIe 4.0 x16 slots, one PCIe 4.0 x8 slot, dual 1 GbE LAN and an Aspeed AST2500 video controller.