Cisco Barebone System - 4U Rack-mountable - Intel C620 Chipset - 4 x Processor Support - 18 TB DDR4 SDRAM DDR4-2666/PC4-21300 Maximum RAM Support - 12Gb/s SAS, Serial ATA RAID Supported Controller - 256 MB Integrated - 32 x Total Bays - 32 2.5" Bay(s) - 12 x Total Expansion Slots - Processor Support (Xeon Gold, Xeon Platinum, Xeon Silver, Xeon Bronze) - 10 Gigabit Ethernet - Intel Optane Memory Ready - 3 USB 3.0 Port(s)1600 W: