Manufacturer: Lenovo Form Factor: Tower Processor (CPU): 2 x Intel Xeon E5-2620 V1 (LGA2011); Quad, Hex, or Eight Core Processors Supported Memory (RAM): 16 GB Supports - 8 x 32GB Maximum Configuration (256GB) Hard Disk Controller: Integrated SAS II and SATA III 6GB/s Controller Hard Disk Drive: 2 x 3.5" (LFF) Drive Bays available - Compatible with 2.5" Drives in Converter Caddies. Graphics: (2) x PCI-e 3.0 Graphics Slots Audio: High Definition integrated audio with internal speaker Optical Drive: 1 x External 5.25" (LFF) Optical bay Network Ports: Integrate Intel Ethernet Controller Power: 800W Power Supply - 2 x 8-pin Power connectors