Dell XPS 720 H2C (Mid 2007) - Manual (Page 164)

164
Appendix
Audio
Type HDA 7.1 channel
Expansion Bus
Bus type PCI Express x1 and x16
PCI 32-bit
PCI (SLOT3, SLOT5, SLOT6)
Connector three
Connector size 124 pins
Connector data width (maximum) 32 bits
Bus speed 33 MHz
PCI Express (SLOT1)
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.
Connector one x1
Connector size 36 pins
Connector data width (maximum) 1 PCI Express lane
Bus throughput x1 slot bidirectional speed — 2.5 Gbps
PCI Express (SLOT7)
Connector one x16
Connector size 164 pins
Connector data width (maximum) 8 PCI Express lanes
Bus throughput x16 slot bidirectional speed — 20 Gbps
PCI Express (SLOT2, SLOT4)
Connector two x16
Connector size 164 pins
Connector data width (maximum) 16 PCI Express lanes
Bus throughput x16 slot bidirectional speed — 40 Gbps