Dell OptiPlex GX745 - 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