Operating System : 4690 OS V5R2, Windows 2000/SPx, Windows XP/SP2, WEPOS, SUSE Linux, PC DOS Processors : Intel Celeron 440 2.0 GHz Memory Support : 667 MHz DDR2 DIMM 512 MB standard 4 GB maximum 2 slots Hard Drive : Zero, one, or two 80 GB or larger SATA II 7200 RPM VIA RAID 0, 1 Removable Storage : Internal CD-RW/DVD or DVD-RW Expansion Slots : 1xPCI, 1xlane PCI Express (PCI-E) I/O Ports : 3 x USB, 4 x RS-232, Parallel, 2 x PS/2, VGA, Audio I/O Communications : 10/100/1000 Mbps Dimensions : 320 x 475 x 117 mm (12.6 x 18.7 x 4.6 in) Weight : 11.4 kg (25.13 lbs)

Operating System : Microsoft Windows XP/Windows Vista, WEPOS, FreeDOS Processors : Intel® Core™2 Duo processor, Intel Pentium® Dual-Core processor, or Intel Celeron® processor Memory Support : Up to 2 GB DDR2 PC2-5300 Hard Drive : 80 GB SATA 7200 rpm Removable Storage : DVD SuperMulti Expansion Slots : N/A I/O Ports : 6 x USB, 2 x RS-232, Parallel, 2 x PS/2, DVI-D, Audio I/O Communications : 10/100/1000 Mbps Dimensions : 34 x 38 x 10 cm Weight : 8.43 kg

Operating System : POSReady 2009, POSReady 7, Microsoft Windows 7 Professional, IBM 4690 OS V6.3 Enhanced, or higher, SUSE Linux 11 (SP2) Processors : Intel Celeron T3100 Memory Support : 665 MHz DDR3 UDIMM 2GB standard 8 GB maximum 2 slots Hard Drive : 500 GB HDD/64 GB SSD option Removable Storage : DVD burner Internal Option (standard on C85) Expansion Slots : 1 PCI, 1 PCI Express standard I/O Ports : Front; One 12 V USB, one headphone, Back; 2 PC USB, 4 RS-232, 1 PS/2 keyboard, 1 PS/2 mouse, Audio mic-in, Audio line out, headphone, 1 RJ45 Ethernet 10/100/1000, 2 VGA Communications : 10/100/1000 Mbps Dimensions : Low profile Distributed 312 mm Χ 451 mm 112 mm, Traditional Narrow: 320 Χ 475 Χ 117.3 mm Weight : Low profile Distributed 10.2 kg, Traditional Narrow: 11.4 kg