Kingston also maintains traditional functional and compatibility testing on their factory, as you can see on Figure 24. That’s because it takes a while to program the tester to test a different kind of memory module, so depending on the volume is faster to use traditional testing.
click to enlarge Figure 24: Traditional functional testing.
click to enlarge Figure 25: Close-up of one traditional functional testing module.
Also, Kingston has several burn-in chambers for testing their modules.