PCI Express®, Signal Transmission & I/O Standard
PCI Express ® is an I/O interconnect bus standard (which includes a protocol and a layered architecture) that expands on and doubles the data transfer rates of original PCI. PCI Express ® is a two-way, serial connetion that carries data in packets along two pairs of point-to-point data lanes, compared to the single parallel data bus of traditional PCI that routes data at a set rate. High-speed edge card sockets support one, four, eight and sixteen PCI Express ® links and mate with PCI Express ® cable assemblies. ® connector and cable soluti...
Source: samtec.com