DeviceBench Tests the Keys, Clicks, Pixels, and Ports of Your Everyday Hardware

Field notes

The keyboard workflow uses physical switch position rather than the character produced, so left and right Shift remain separate test targets and layouts such as QWERTY, AZERTY, and QWERTZ can share the same board. A per-key counter helps expose switch chatter when one deliberate tap registers twice. The surrounding catalog groups 66 tests into areas including display, audio, controllers, network diagnostics, and PC-build calculations.