Operating System :Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel C602 Processors :Intel Xeon E5-2600, Intel Xeon E5-2600 v2, Intel Xeon E5-1600, Intel Xeon E5-1600 v2 Memory Support :12 DIMM Slots for DDR3 ECC, 4-channel per processor 1066/1333/1600/1866 MHz DDR3, Up to 192GB Hard Drive :250GB to 3TB SATA 3.0-Gb/s, 300GB to 1.2TB SAS, 128GB to 512GB SSD Drives Removable Media :DVD-ROM/ DVD-ReWritable Expansion Bays :External: Two (2) 5.25-inch, Internal: Three (3) 3.5-inch Expansion Slots :2 PCIe x16 Gen3 Slots, 1 PCIe x8 Gen3, 1 PCIe x8(x4) Gen2, 1 PCIe x4(x1) Gen2, 1 PCI Slot Graphics :N/A Audio :Integrated Intel/Realtek HD ALC262 Audio Communications :Integrated Intel 82579LM PCIe GbE Controller I/O Ports :Front: 1 USB 2.0, 2 USB 3.0, Headphone/Mic, Rear: 4 USB 2.0, 2 USB 3.0, 2 PS2, Audio I/O Input Devices :Standard Keyboard (USB or PS/2) Mouse (USB or PS/2) Power :800W Dimensions :44.45 x 17.15 x 46.48 cm Weight :17.9 kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Q170 Processors: Intel 6th generation Core i5-i7 Quad Core, Core i3 Dual Core Memory Support: Four (4) DIMM slots , Up to 32 GB DDR4 Hard Drive : Up to 2 TB SATA, 7200rpm or SSD (optional) Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) 5.25-inch, Internal: One (1) 3.5-inch Expansion Slots : One (1) PCIe x 4 HH, One (1) PCIe x 16 HH, One (1) M.2 3388 Graphics : Integrated Intel HD Graphics 530 Audio : Integrated Audio Communications : Integrated Intel i219-LM GbE Network Connection I/O Ports : Front: Two (2) USB 2.0, Two (2) USB 3.0, Cardreader (optional), Audio I/O Rear: Four(4) USB 3.0, Two (2) USB 2.0,Two (2) DP, HDMI, VGA(optional), Serial, RJ-45, Audio I/O, PS/2 Input Devices : Standard Keyboard, Mouse (USB or PS/2) Power : 240 W Dimensions : 29.2 x 29 x 9.26 cm Weight : 4.48 kg

Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: Intel Tylersburg 36D & Intel ICH10 Processors: Intel Xeo Dual Core & Intel Xeon Quad Core Memory Support: Six (6) slots, DDR3 Unbuffered SDRAM Hard Drive : Up to 1 TB SATA 7200 rpm or SSD (optional) Removable Media : DVD-ROM/ DVD-ReWritable Expansion Bays : External: One (1) 5.25-inch, Internal: Three (3) 3.5-inch Expansion Slots : Two (2) PCI Express x16 height length, One (1) PCI Express 2.0 x4 height length, , One (1) PCI x1 height length, One (1) PCI half length Graphics : Integraded with processor Audio : Analog Devices AD1988A Communications : Integrated Gigabit Ethernet I/O Ports : Front: Two (2) USB 2.0 , Audio I/O , Rear: Eight (8) USB 2.0, RS232, RJ45, Esata,Audio ports Power : 625 W Dimensions : 48.8 x 47.8 x 17.5 cm Weight : 17.5kg