PC Power Supply Tester with 20/24 Pin SATA HDD Connectors Description It checks to the voltage on all wires to ensure that the power supply is functioningproperly. This is an essential tool for any computer technician. It will allow you to quickly diagnose or rule out problems with the power supply, whichshould the the first thing you check when diagnosing computer problems. Operation: Easy to use, just plug in connectors and green LEDs illuminate to show which pins aregetting power. There is a detailed operation on the packing card. 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 Connector: Floppy,HDD,CDROM,SATA,4 pin(P4),8 pin(Dual CPU),6 pin(PCI-Express) Voltage Source: 20/24 pin(ATX-connector) Voltage Test: +12V,-12V,+5V,-5V,+3V,-3V,5V stand by(SB),12V power good(PG) Colour: Black Material: Sturdy plastic Product size: approx. 88 x 68 x 28 mm/3.46 x 2.67 x 1.1inch Included: 1x Power Supply Tester #PowerSupplyTesters #Accessories #tester #Adapter #PowerSupply #PC #psutesters #ComputerComponentsParts #ComputerAccesssories #Computers/Tabletsamp;Networking #PCPowerTester #PCtester #ATXtester #Computers/TabletsNetworking #ComputerComponentsamp;Parts #MolexHDDConnectors #black #pcpowersupply