Dell OptiPlex GX270 - Manual (Page 172)

USB 2.0
Bus speed PCI: 33 MHz
AGP: 66 MHz
Small form-factor computer low-profile cards are supported (card size =6.35 cm
[2.5 inches] high by 16.76 cm [6.6 inches] long)
AGP
connector one
connector size 172 pins
connector data width (maximum) 32 bits
bus protocols 8x/4x modes at 1.5 V
PCI
connector one
connector size 120 pins
connector data width (maximum) 32 bits
Small desktop computer two half-length PCI cards (card size = 10.67 cm [4.2
inches] high by 17.65 cm [6.95 inches] long)
one low-profile AGP card (card size = 6.35 cm [2.5
inches] high by 16.76 cm [6.6 inches] long)
AGP
connector one
connector size 172 pins
connector data width (maximum) 32 bits
bus protocols 8x/4x modes at 1.5 V
PCI
connectors two
connector size 120 pins
connector data width (maximum) 32 bits
Small mini-tower computer card sizes = three PCI slots support cards up to 27.9
cm (11 inches) long, and one PCI slot and the AGP
slot support cards up to 22.9 cm (9 inches) long
AGP
connector one
connector size 172 pins
connector data width (maximum) 32 bits
bus protocols 8x/4x modes at 1.5 V
PCI
connectors four
connector size 120 pins
connector data width (maximum) 32 bits
Drives
Externally accessible:
Small form-factor computer one bay for a slimline floppy drive
one bay for a slimline CD/DVD drive
Small desktop computer one 3.5-inch bay
one 5.25-inch bay
Small mini-tower computer two 3.5-inch drive bays
two 5.25-inch drive bays
Internally accessible:
Small form-factor computer one bay for a 1-inch-high hard drive
Small desktop computer one bay for a 1-inch-high hard drive
Small mini-tower computer two bays for 1-inch high hard drives
Connectors
External connectors:
Serial 9-pin connector; 16550C-compatible
Parallel 25-hole connector (bidirectional)
Video 15-hole connector
Network adapter RJ45 connector
PS/2 (keyboard and mouse) 6-pin mini-DIN