Its a *new shelve display item but has 4 very tiny surface marks so it is being sold as used!

Free shipping and handling will cost me about $4.50

Package Includes

1 x 20 / 24-pin Power Supply Tester for ATX / SATA / HD
Prevent electrical disasters by testing your power supply regularly to identify problems before they damage your computer
Description

Test computer power supplies with this simple power supply tester.  It checks to the voltage on all wires to ensure that the power supply is functioning properly.  This is an essential tool for any computer technician.  It will allow you to quickly diagnose or rule out problems with the power supply, which should the the first thing you check when diagnosing computer problems.  Please note that some cheap power supplies do not provide -12V power.
Features and Specifications

Checks 20/24-pin ATX (motherboard) Power, SATA (hard drive) power, Molex (old hard drive) power, Mini-molex (floppy) power, and 6-pin PCI-e (graphics card) connectors.
Checks Ground, +3.3V, +5V, +12V, -5V, and -12V lines.
Easy to use, just plug in connectors and green LEDs illuminate to show which pins are getting power.
Power supply will automatically turn on when connected.