Dell Precision T5400 (Late 2007) - Manual (Page 39)

About Your Computer 39
PCI Express x8 wired as x4
(SLOT1_PCIE)
connectors one x8 (supports x8, x4, and x1 modes/cards;
maximum x4 link width)
connector size 98 pins
connector data width (maximum) 4 PCI Express lanes
bus transfer rate
2.5 GB/s/lane/direction (raw bandwidth)
PCI Express 2.0 x16
connector two x16 slots (support x16, x8, x4 and x1
modes/cards)
connector size 164 pins
connector data width (maximum) 16 PCI Express lanes
bus transfer rate
5 GB/s/lane/direction (raw bandwidth)
Ports and Connectors
External connectors
Serial two 9-pin connectors; 16550C-compatible
Parallel 25-hole connector (bidirectional)
IEEE 1394 (optional) one front-panel 6-pin connector and one
rear panel 6-pin connector
Network adapter RJ45 connector
PS/2 (keyboard and mouse) two 6-pin mini-DIN
USB two front-panel and five back-panel USB
2.0–compliant connectors
Audio two front-panel connectors for microphone
and headphones;
two back-panel connectors for line-in and
line-out
System board connectors
Floppy drive 34-pin connector
Expansion