The PCI express® link design of the Trenton BP2S6929 backplane enables the use of combo, graphics or server-class SHBs without the need of specific build options. Each segment supports either a graphics-class or server-class SHB, three PCI express (PCIe) and four 64- bit/100MHz PCI-X option card slots. All the PCI express slots are x16 mechanical slots and each PCIe slot is driven with a x8 PCI express link. Each backplane segment has right-angle, ATX/EPS and 12V AUX power connectors. The backplane can also be ordered with supplemental terminal blocks for connecting additional +12V, +3.3V and +5V power.