The card itself seems a simple enough device, no longer than the PCI slot interface it is designed to fit in. There's not a really good place to grip the card when inserting or removing it from the slot so be careful not to damage any of the components when using it. It has a series of LED's on the card as well as an LCD 2-character display that shows the hexidecimal code reported by the BIOS. The TechAID comes with an extension cable and remote display if the main diagnostics card is positioned in such a way that makes it difficult to read the code.
Let's see how the TechAID performs.