Type: HP Z Series Z600 Workstation. Seller refurbished unit may show minor signs of cosmetic blemishes.Processor: Single Intel Xeon E5620 Quad Core 2.4Ghz Processor. 8 Virtual Cores in Hyperthreading Mode! (Additional processor configurations available).Memory: 12GB. Supports up to 48GB of total memory, 6 DIMM slots, 3 per processor. (Actual memory speed dependent on the processor capability).Hard Drives: 500GB 7.2K PC SATA Drive (Additional hard drive configurations available).Drive Bays: Up to two 3.5'' or 2.5'' (adapter needed for 2.5'') internal SATA and 2 external 5.25" bay, for SAS or SSD hard drives. Raid Controller: SATA RAID 0, 1, 5, and 10 support standard on motherboard (raid not supported with Linux). 6 channels of SATA 3.0 Gb/s natively supported internallyGraphics: Dual DVI 256MB Graphic Card (Additional graphic cards available).Operating System: Windows 10 Professional 64-Bit Pre-Installed (32-bit available on request).Power Supply: 650 Watt 85% efficient power supply, direct connection power supply.Optical Drive(s): DVDRW Drive.Dimensions: 40 Lbs, 17.3'' x 8'' x 17.5'' (L x W x H)Networking: Integrated Broadcom 5764 Gigabit LAN on Motherboard (LOM).Slots: 2 PCI Express Gen2 x16 slots (full-length, full-height), 1 PCI Express Gen2 x4/x8* slot with x8 open-ended connectors (full-length, full-height), 1 PCI Express Gen1 x4/x8* slot with x8 open-ended connectors (full-length, full-height), 2 PCI 32bit/33MHz slot, (full-length, full-height). Front Ports: 3 USB 2.0, 1 Headphone Out, 1 Microphone In. 1 IEEE 1394a integrated with systems manufacturedbeginning 3/22/10.Rear Ports: 6 USB 2.0, 1 RJ-45 to integrated Gigabit LAN, 2 legacy PS/2, 1 Audio Line In, 1 Audio Line Out, 1 Microphone In; audio ports can be retasked to function as line in, line out, microphone, or headphone. Serial supported with optional rear bulkhead adapter.Internal Ports: 3 USB 2.0 headers. Peripherals: Power Cable Included. Mouse, Keyboard, and Video Cable Not Included.*Systems are built to order and fully customizable. Please call for more information. Note that a stock photo is used and unit may differ depending on configuration.