USB

USB is used for connecting multiple devices to a host computer. USB UVC transmits video over USB. Before protocol overhead: USB 2 runs at speeds up to 480 Mbits/s.  USB 3 runs at speeds up to 5Gbits/s (Gen1x1), 10Gbit/s (Gen2x1, Gen1x2), 20Gbit/s (Gen2x2). USB-4 runs st speeds of  20/40/80 Gbits/s.  USB uses 8/10 bit encoding, so only four fifths of the bandwidth is available for data. USB has both a host interface and a device interface. FPGAs are well supported with the device interface, both with hard-core USB device cores, and by the well-known less-than $10 FTDI chips. The $23 EZ-USB™ FX5 enables a low cost FPGA to function as a USB host.