PC interfaces
1. USB (USB 1.1 = 12Mbps, USB 2.0 = 480Mbps) = for keyboards, mice, modems, printers, digital cameras, joysticks, scanners, etc.; hot swappable; using multiple USB Hubs, can daisy chain up to 127 devices
2. FireWire/IEEE 1394 (480Mbps) - hot swappable; can connect as many as 63 devices