Operating System :Windows 7 Home & Pro. MAR, Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel® PCH C206 Processors :Intel® Xeon? processor E3 family, 2nd gen Intel® Core™ processor family, Dual-Core Intel Pentium processors Memory Support :Four (4) DIMM slots for DDR3 PC3-10600 ECC, 16GB Max Hard Drive :250GB to 2TB SATA 3.0-Gb/s, 160GB to 256GB SSD Drives Removable Media :16X DVD-ROM SATA Drive, 16X DVD+/-RW SuperMulti SATA Drive, Blu-ray Writer Expansion Bays :External: Three (3) 5.25-inch, Internal: Three (3) 3.5-inch Expansion Slots :1 PCIe x16 Gen2 Slot, 1 PCIe x16 Gen2 (x4), 1 PCIe x8 Gen2 (x4), 2 PCIe x1 Gen1, 2 PCI Slots Graphics :Intel Integrated Graphics Media Accelerator HD Audio :Integrated Intel/Realtek HD ALC262 Audio Communications :Intel Gigabit CT Desktop NIC I/O Ports :Front: Three (3) USB 2.0, Headphone/Mic, Rear: Six (6) USB 2.0, 2 PS2, Serial, Audio I/O, DVI-I, DP Input Devices :Standard Keyboard (USB or PS/2) Mouse (USB or PS/2) Power :400 watts wide-ranging, active Power Factor Correction, 90% Efficient Dimensions :447 x 178 x 455 mm (17.6 x 7 x 17.9 in) Weight :11.7 kg (25.8 lbs)

Operating System :Windows 7 Home & Pro. MAR, Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel® 5400 Processors :Quad-Core Intel® Xeon? Processor 5400 or Dual-Core Intel® Xeon? Processor 5200 Memory Support :Eight (8) DIMM slots DDR2-667MHz FB-DIMM. Up to 32 GB Memory capacity Hard Drive :80GB to 1TB SATA 3.0-Gb/s, 73GB to 450GB SAS Drives Removable Media :16X DVD-ROM Drive, SATA 48X CD-RW/DVD-ROM Combo Drive, SuperMulti DVD+/-RW LightScribe Drive Expansion Bays :External: Two (2) 5.25-inch, One (1) 3.5-inch, Internal: Two (2) 3.5-inch Expansion Slots :2 PCI Express x16 Gen2 Graphics Bus, 2 PCI, 2 PCI Express x8 (x4) Graphics :N/A Audio :High Definition Integrated Realtek ALC262 Audio Communications :Integrated Broadcom 5755 Gigabit LAN I/O Ports :Front: Two (2) USB 2.0, Headphone/Mic, Rear: Five (5) USB 2.0, 2 PS2, Serial, Audio I/O Input Devices :Standard Keyboard (USB or PS/2) Mouse (USB or PS/2) Power :650 watt 80 PLUS high efficiency power supply Dimensions :N/A Weight :N/A

Operating System :Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel X58 Express Processors :Intel Xeon Processors: E5-1600 family (4C), E5-1600v2 family (4C/6C/8C), E5-2600v2 (8C) Memory Support :8 DIMM Slots for DDR3 ECC Memory Hard Drive :250GB to 2TB SATA 3.0-Gb/s, 300GB to 600GB SAS, 128GB to 256GB SSD Drives Removable Media :16X DVD-ROM SATA Drive, 16X DVD+/-RW SuperMulti SATA Drive, Blu-ray Writer Expansion Bays :External: Three (3) 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 Power :600W Dimensions :44.76 x 17.78 x 44.52 cm Weight :13.2kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel PCH C236 Processors :Core i3/i5/i7-6xxx processors, Xeon E3 processors Memory Support :4 DDR4 memory slots, DDR4, Max 64 GB Hard Drive :SATA or SSD Removable Media : N/A Expansion Bays : 1 shared internal/external 3.5" bay, 1 internal 3.5" bay, 1 internal 2.5" bay (for SSD only) Expansion Slots : 1 PCIe Gen3 x16, 1 PCIe Gen3 x4 (x4 connector), 1 PCIe Gen3 x4 (x16 connector), 1 PCIe Gen3 x1, 1 PCI (optional), 1 M.2 PCIe Gen3 x4 Graphics : Intel Integrated Graphics for Xeon processors Audio : Integrated Realtek HD ALC221-VB audio Communications : Integrated Intel I219LM PCIe GbE I/O Ports :Front: 2 USB 3.0, 2 USB 2.0 (1 charging), 1 headphone; 1 microphone, Back: 4 USB 3.0, 2 USB 2.0, 2 DisplayPort 1.2,1 DVI-I single link, 1 serial (optional); 1 parallel (optional), 2 PS/2; 1 RJ-45; 1 audio line-in; 1 audio line-out Power :400 W 92% efficient, wide-ranging, active PFC, 280 W 90% efficient, wide-ranging, active PFC Dimensions : 170 x 442 x 399 mm Weight :Starting at 8.6 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel PCH C236 Processors :Core i3/i5/i7-6xxx processors, Xeon E3 processors Memory Support :4 DDR4 memory slots, DDR4, UDIMM (unbuffered), ECC and non-ECC, 2133MT/s DDR4, Max 64 GB Hard Drive :500GB to 4TB SATA 3.0-Gb/s, 128GB to 1TB SSD Drives Removable Media : N/A Expansion Bays : 1 shared internal/external 3.5" bay, 1 internal 3.5" bay, 1 internal 2.5" bay (for SSD only) Expansion Slots : 1 PCIe Gen3 x16 slot, 1 PCIe Gen3 x4 slot (x16), 2 PCIe Gen3 x1 slot Graphics : Intel HD Graphics 530 (on Core i3/i5/i7-6xxx processors); Intel Integrated Graphics for Xeon processors Audio :Integrated HD Audio Communications : Integrated Intel I219LM PCIe GbE Controller I/O Ports :Front: 2 USB 2.0, 2 USB 3.0, Headphone/Mic, Rear: 6 USB 3.0, 2 PS2, 1 Serial, Audio I/O, 3 DP Input Devices :Standard Keyboard (USB or PS/2), Mouse (USB or PS/2) Power :240W, 92% efficiency, wide-ranging, active PFC Power Supply Dimensions : 100 x 338 x 381 mm Weight :6,7 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset :Intel C612 Processors :Intel Xeon Processors: E5-1600 v3/v4 family (4C/6C/8C), E5-2600 v3 family (8C) Memory Support :8 DIMM Slots for DDR4 ECC Registered Memory Hard Drive :500GB to 4TB SATA 3.0-Gb/s, 128GB to 1TB SSD Drives Removable Media :16X DVD-ROM SATA Drive, 16X DVD+/-RW SuperMulti SATA Drive, Blu-ray Writer Expansion Bays :External: Two (2) 5.25-inch, Internal: Two (2) 3.5-inch Expansion Slots :2 PCIe x16 Gen3 Slots, 1 PCIe x8 Gen 3, 1 PCIe x1 Gen 2, 1 PCIe x4 Gen 2, 1 PCI Slot Graphics :N/A Audio :Integrated Intel/Realtek HD ALC262 Audio Communications :Integrated Intel I218LM PCIe GbE Controlle I/O Ports :Front: Four (4) USB 3.0, Headphone/Mic, Rear: Two (2) USB 2.0, Four (4) USB 3.0, 2 PS2, Audio I/O Power :525W or 700W Dimensions :43.2 x 16.8 x 45.6 cm Weight :13.5 kg