Test point
![The two rows of holes (labelled #3) are test points used during the manufacture of this USB memory key.](/Images/godic/202502/15/Usbkey_internals_edit2440.jpg")
A test point is a location within an electronic circuit that is used to either monitor the state of the circuitry or to inject test signals. Test points have two primary uses:
Test points can be labelled and may include pins for attachment of alligator clips or may have complete connectors for test clips.