The BPX5 PCI Express backplane is a small form factor backplane designed to fit into a small chassis or embedded in an OEM machine. The small or shoebox form factor of the BPX5 also provides the capability for rackmount computer and storage system designs to support multiple small form factor backplanes/single board computers within a single enclosure.
The BPX5 PCI Express backplane supports a single or dual-processor single board computer and up to four standard PCI Express plug-in I/O cards.