Which standard allows high-speed data transfer at 800Mbps and supports up to 63 devices on a single channel?

The standard that allows high-speed data transfer at 800Mbps and supports up to 63 devices on a single channel is FireWire. FireWire, also known as IEEE 1394, was developed by Apple and later standardized by IEEE. It was widely used for connecting devices such as digital video cameras, external hard drives, and audio interfaces due to its high data transfer rates and ability to daisy-chain multiple devices together on a single bus.

FireWire 800, specifically, is capable of transferring data at 800Mbps, which is double the speed of its predecessor, FireWire 400. The capacity to connect up to 63 devices on a single channel stems from its design, which incorporates a unique architecture that allows for the robust communication of multiple devices without significantly degrading performance.

While USB 3.0 offers faster data transfer speeds at up to 5Gbps and can connect multiple devices, its architecture is different, and it doesn't support as many devices on a single channel in the same way that FireWire does. Thunderbolt offers high data transfer capabilities but is not specifically associated with the 800Mbps speed or the same number of devices. HDMI is primarily focused on transmitting video and audio signals rather than general data transfer, making it unsuitable