The TRC4015 4U rackmount computer is an ideal system solution for high-end industrial and military computing as well as demanding video processing and graphics applications. The system supports a variety of PICMG® 1.3 single board computers and large format (20-slot) backplane options. An example of a large format backplane option for the TRC4015 is the Trenton BPG8194 with its eight, GEN3 PCI Express x16 electrical interfaces to the card slots plus five additional x16 mechanical card slots connected with x4 electrical links. Additional backplane options include the BPG8032 that provides the ability to support up to eighteen PCIe plug-in cards in the TRC4015 4U rackmount computer.