The Supermicro SYS-621P-TR Mainstream SuperServer supports dual 4th Gen Intel Xeon Scalable processors and up to 4TB ECC RDIMM DDR5-4800 memory in 16 DIMM slots. Like other mainstream servers, the SYS-621P-TR includes 8 hot-swappable 3.5” drive bays, 6 PCIe 5.0 slots. It powered by a 1200W/1000W titanium power supply with an over 80% efficiency rating.