MAIN OVERVIEW FEATURES: Processor Supported: EPYC64-bit Processing: YesMaximum Memory: 4 TBMemory Technology: DDR4 SDRAMMemory Standard: DDR4-2666/PC4-21300Number of Total Memory Slots: 32Controller Type: Serial ATA/600RAID Supported: YesGraphics Controller Manufacturer: ASPEEDGraphics Controller Model: AST2500Graphics Memory Capacity: 64 MBEthernet Technology: Gigabit EthernetNumber of Total Expansion Bays: 12Number of Internal 2.5" Bays: 12Number of Total Expansion Slots: 4Number of PCI Express x8 Slots: 1Number of PCI Express x16 Slots: 3Total Number of USB Ports: 2Number of USB 3.0 Ports: 2Number of SATA Interfaces: 8Operating System Supported: Red Hat Enterprise Linux,SuSE Linux Enterprise Server,Windows Server 2012 R2,CentOS,Windows Server 2016,Ubuntu LinuxInput Voltage: 120 V AC,230 V ACNumber of Power Supplies Installed: 2Maximum Power Supply Wattage: 800 WForm Factor: Rack-mountableRack Height: 1UHeight: 1.7"Width: 17.5"Depth: 27"Weight (Approximate): 26.79 lbEnvironmentally Friendly: YesEnvironmental Certification: RoHS