Easily test your computer power supply and avoid damage to computer equipment No batteries required Compatible with ATX, BTX, ITX power supplies
Voltage Source: 20/24pin (ATX-connector)
Voltage Test: + 3.3V, +5V, +VSB, and +12V
Size: 4.75" x 2.5" / 12.07 cm x 6.35 cm;
Color: Black
Package Contents: 1x Digital Power Supply Tester