Self-Powered Compared to Bus-Powered USB Devices

Bus-powered USB DAQ devices require no external power source. Examples of bus-powered devices include the following.
  • NI mioDAQ devices
    • USB-6421
    • USB-6423
    • USB-6451
    • USB-6453
  • M Series devices
    • NI 6210
    • NI 6211
    • NI 6212
    • NI 6215
    • NI 6216
    • NI 6218
Self-powered USB devices require an external power source such as a wall outlet or a battery. Self-powered devices can drive higher currents than bus-powered devices.