iMicro KB-US9821 Wired USB Keyboard, Used for notebooks and desktop computers. 4.5V - 5.5V Operating Voltage, ABS plastic for key cap, 92 cm height naturally fell with the packing

• Operating Voltage: 4.5V - 5.5V
• Operating Current: 50 mA
• Operating Temperature: 0 ~+ 50
• Life Power: 5 Million times

Operating Voltage: 4.5V - 5.5ViMicro