External: One (1) 5.25-inch, One (1) 3.5-inch, Internal: One (1) 3.5-inch

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel Q43
Processors : Intel Core 2 Quad, Core 2 Duo, Pentium, Celeron
Memory Support : Four (4) DIMMs. Up to 16 GB DDR3 1066 MHz
Hard Drive : Sata 6Gb/s 7.200 rpm Up to 1TB
Removable Media : DVD-ROM/ DVD-ReWritable
Expansion Bays : External : One (1) 5.25-inch, One (1) 3.5-Inch Internal: One (1) 3.5-inch
Expansion Slots : One (1) PCIe 2.0 x16 LP, One (1) PCIe x4(mech x8) LP, Two (2) PCI 32-bit/33MHz
Graphics : Intel GMA 4500
Audio : Realtek ALC663
Communications : Gigabit Ethernet , Intel 82567 LF
I/O Ports : Front: Two (2) USB 2.0, Audio I/O, Rear: Six (6) USB 2.0, VGA, RJ-45, Two (2) Serial, PS/2, Audio I/O
Input Devices : Standard Keyboard, Mouse (USB or PS/2)
Power : 250W
Dimensions : 38 x 34 x 10 cm
Weight : 10 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel Q67
Processors : Intel Core G Series
Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 1333 MHz SDRAM 
Hard Drive : Up to 1 TB 7200 rpm
Removable Media : DVD-ROM/ DVD-ReWritable
Expansion Bays : External: One (1) 5.25-inch, One (1) 3.5-inch Internal: One (1) 3.5-inch
Expansion Slots : One (1) LP PCI, Two (2) LP PCI-E x16 (1 wired x4), One (1) LP PCI-E x1
Graphics : Intel HD Graphics 2000/3000 (integrated)
Audio : Realtek ALC261 codec
Communications : Intel 82579LM integrated GbE Network Connection
I/O Ports : Front: Four (4) USB 2.0, Audio I/O, Rear: Six (6) USB 2.0, Serial, VGA, DP,RJ-45, Two (2) PS/2, Audio I/O
Input Devices : Standard Keyboard (PS/2 or USB)
Power : 240 W
Dimensions : 37.9 cm 33.8 cm x 10.0 cm
Weight : 7.6 kg

Operating System : Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS
Chipset : Intel Q85
Processors : Intel 4th Gen Core i3,i5,i7
Memory Support : Four (4) DIMM slots , Up to 32 GB DDR3 1600MHz
Hard Drive : Up to 2T 7.200rpm or SSD
Removable Media : DVD-ROM/ DVD-ReWritable
Expansion Bays : External : One (1) 5.25-inch ,One (1) 3.5-inch, Internal: One (1) 3.5-inch
Expansion Slots : One (1) LP PCI Express 3.0 x16, One (1) LP PCIe 2.0 x1, One (1) LP PCIe 2.0 x16
Graphics : Intel HD Graphics
Audio : High Definition (HD) Audio, Realtek ALC662 codec
Communications : Intel I217-LM GbE Network Connection
I/O Ports : Front: Two (2) USB 3.0 , Audio I/O  Rear: Two (2) USB 3.0, Four (4) USB 2.0, VGA, Two (2) DP, RJ-45, Serial, Audio I/O, parallel 25-pin (optional)
Power : 240 W
Dimensions : 37.5 x 33.8 x 10.2 cm
Weight : 7.8 kg