Expansion Bays 2.0 (total) / 1.0 (free) x Internal - 3.5" x 1/3H, 2.0 (total) / 0.0 (free) x Front accessible - 5.25" x 1/2H, 2.0 (total) / 1.0 (free) x Front accessible - 3.5" x 1/3H
Expansion Slot(s) 1.0 (total) / 0.0 (free) x PCI Express x1 - LGA775 Socket, 2.0 (total) / 1.0 (free) x PCI Express x16 - DIMM 184-pin, 1.0 (total) / 2.0 (free) x PCI, 1.0 (total) / 1.0 (free) x Memory, 4.0 (total) / 1.0 (free) x Processor
Interfaces 1.0 x IEEE 1394 (FireWire) - IEEE 1284 (EPP/ECP) - 4 pin USB Type A ( 2 in front ), 1.0 x Audio - Generic - RJ-45 ( 2 in front ), 1.0 x Modem - Generic - 6 pin mini-DIN (PS/2 style), 7.0 x Audio - Ethernet 10Base-T/100Base-TX - RJ-11, 3.0 x Parallel - Line-out - Mini-phone stereo 3.5 mm, 1.0 x Hi-Speed USB - Phone line - 25 pin D-Sub (DB-25), 1.0 x Mouse - Line-in - 6 pin mini-DIN (PS/2 style), 1.0 x Network - RS-232 - Mini-phone stereo 3.5 mm, 1.0 x Serial - 9 pin D-Sub (DB-9), 1.0 x Keyboard