A great cost effective tool to have and use! save on those silly charges and work out if your hardware is working or not!
Designed to troubleshoot PC boot failures, when PC doesn’t even show Video Card/BIOS screen etc

- Features 4 LED indicators for power supply status, and a 2-digit numeric display for detailed diagnostic code
- PCI slot interface
- Plug-and-play

Great to keep around if you or a friend ever has a PC issue.

The manual itself is worth the purchase price, and has lots of PC diagnostic and troubleshooting information.(edited english).. useful even if you never plug in the diagnostic card

Brillant and very affective