AMD Athlon 2.8 GHz, 1 GB, 201 GB hard drive, DVD-ROM

Intel Pentium D 2.2 GHz, 1 GB, 80 GB hard drive, DVD-ROM, Microsoft Windows XP Professional, For: Business

Core 2 Duo 2.2 GHz, 4 GB RAM, 320 GB hard drive, 17.3 in. LED, Microsoft Windows 7 Home Premium 64-bit, 6.72 lb. (3.04 kg)

Core i3 2.3 GHz, 6 GB RAM, 640 GB hard drive, 17.3 in. HD LED, Microsoft Windows 7 Home Premium 64-bit, 6.05 lb. (2.74 kg)

External Enclosure, USB 2.0 Interface