Dell OptiPlex DCCY Setup And Quick Reference Manual page 40

Connectors (continued)
PCI Express x1
mini tower
connector size
connector data width
(maximum)
PCI Express x16
mini tower, desktop, and small
form factor
connector size
connector data width
(maximum)
Serial ATA
mini tower
desktop and small form factor
ultra small form factor
connector size
Memory
mini tower, desktop, and small
form factor
ultra small form factor
connector size
Internal USB device
mini tower, desktop, and small
form factor
Floppy drive
mini tower and desktop
small form factor
40
Specifications
one connector
36 pins
1 PCI Express lane
one connector
164 pins
16 PCI Express lanes
four connectors
two connectors
one connector
7-pin connector
four connectors
two connectors
240 pins
one 10-pin connector (supports two USB
ports)
one 34-pin connector
one 26-pin slim connector