Dell OptiPlex 745 - Manual (Page 57)

Bus type PCI 2.3
PCI Express 1.0A
SATA 1.0A and 2.0
USB 2.0
Bus speed PCI: 133 MB/s
PCI Express x16: 8 GB/s bidirectional speed
SATA: 1.5 Gbps and 3.0 Gbps
USB: 480 Mbps
Cards half-length, full-height cards supported with optional
riser-card cage
Default: no riser-card cage low-profile cards supported
PCI
connectors two
card size low profile
connector size 120 pins
connector data width
(maximum)
32 bits
PCI Express
connectors one x16
card size low profile
power 25 W maximum
connector size 120 pins (x16)
connector data width (maximum) 16 PCI Express lanes (x16)
Optional: full-height PCI Express riser-card cage low-profile and full-height cards supported
PCI
connectors two
card size one low-profile card and one full-height card
connector size 120 pins
connector data width
(maximum)
32 bits
PCI Express
connectors one x16
card size full-height
power 25 W maximum
connector size 120 pins (x16)
connector data width (maximum) 16 PCI Express lanes (x16)
Optional: full-height PCI riser-card cage low-profile and full-height cards supported
PCI
connectors three
card size one low-profile card and two full-height cards
connector size 120 pins
connector data width
(maximum)
32 bits
Drives
Externally accessible one 3.5-inch drive
one bay for optical drive or optional second hard
drive
Internally accessible one bay for a 1-inch-high hard drive
Connectors
External connectors:
Serial 9-pin connector; 16550C-compatible
Parallel 25-hole connector (bidirectional)
Video 15-hole VGA connector
Network adapter RJ45 connector
Optional PS/2 with secondary serial port
adapter two 6-pin mini-DINs
USB two front-panel and six back-panel USB 2.0–
compliant connectors