USB-device-currents

From wikipost

Various USB devices and their current draw



Device Idle Max Comments
Basic USB keyboard 5mA 45mA Leds (caps, num, scroll) add most current!
Optical mouse 17.3mA 32mA Logitech M-BZ96C
Argent Data OpenTrackerUSB 23mA 23mA
Edimax EW-7811Un WiFi 34mA 85mA idle at 34mA with short bursts of 71mA
2.5" Sata HDD in USB enclosure 180mA 600mA
Raspberry Pi (model A) 160mA 191mA Without Ethernet controller and 1 USB port
Raspberry Pi (model B) 404mA 367mA With Ethernet controller and 2 USB ports