Dell XPS 720 H2C Owner's Manual page 3

PCI (SLOT3, SLOT5, SLOT6)
Connector
Connector size
Connector data width (maximum)
Bus speed
PCI Express (SLOT1)
Connector
Connector size
Connector data width (maximum)
Bus throughput
PCI Express (SLOT7)
Connector
Connector size
Connector data width (maximum)
Bus throughput
PCI Express (SLOT2, SLOT4)
Connector
Connector size
Connector data width (maximum)
Bus throughput
Drives
Available devices
Externally accessible:
Internally accessible:
Connectors
External connectors:
IEEE 1394
Network adapter
PS/2 (keyboard and mouse)
USB
System board connectors:
IDE drive
Serial ATA
Floppy drive
Fan
Liquid cooling (optional)
PCI
PCI Express x1
PCI Express x16 (SLOT7); card length up to
17.8 cm (7 inches only)
PCI Express x16
Controls and Lights
Power control
Power light
PCI 32-bit
three
124 pins
32 bits
33 MHz
NOTE: If a graphics card is installed in each of the
PCI Express x16 card slots in the dual-graphics
configuration, the PCI Express x1 card slot is not
accessible for use.
one x1
36 pins
1 PCI Express lane
x1 slot bidirectional speed — 2.5 Gbps
one x16
164 pins
8 PCI Express lanes
x16 slot bidirectional speed — 20 Gbps
two x16
164 pins
16 PCI Express lanes
x16 slot bidirectional speed — 40 Gbps
Serial ATA drive, floppy drive, memory devices,
Blu-ray™ Disc drive, DVD drive, DVD-RW drive,
CD-RW/DVD combo drive, and media card reader
two 3.5-inch drive bays
four 5.25-inch drive bays
four 3.5-inch drive bays for hard drives
front and back-panel 6-pin serial connectors
RJ45 connector
two 6-pin mini-DIN
two front-panel, six back-panel, and two internal
USB 2.0–compliant connectors
one 40-pin connector
six 7-pin connectors
34-pin connector
three 5-pin connectors
one 12-pin connector
three 124-pin connectors
36-pin connector
164-pin connector
three 164-pin connectors
push button
green light — Blinking green in sleep state; solid
green for power-on state.