Asus RS521A-E12-RS12U Server Barebone System - 2U Rack-mountable - Socket SP5 - 1 x Processor Support - 1 x AMD EPYC 5th Gen - AMD Chip - 2 TB DDR5 SDRAM Maximum RAM Support - 24 Total Memory Slots - NVMe RAID Supported, Serial ATA/600 Controller - ASPEED AST2600 64 MB Graphic(s) - 12 3.5" Bay(s) - 2 2.5" Bay(s) - Network (RJ-45) - 2 M.2 Interface(s) - Gigabit Ethernet - Windows Server 2022, Ubuntu 24.2 Supported Operating System - 4 USB 3.2 Gen 1 Port(s) - 2 x 2000 W: