This gauge connects to your computer to reveal critical information about your PC's current operating conditions. Rather than modern digital readouts, the Gigabyte Visual USB Gauge (GZ-PGAPB-01R) uses a good, old fashioned analog gauge to relay the current state of your power supply. Designed specifically for use with Odin GT series of PSUs, the gauge plugs into your computer through a USB port and can tell you about the power supply's current operating temperature, wattage consumption and fan speed. The three LED illuminated buttons in front of the device are used to quickly switch between the three measurement types.