Here is a 101-key keyboard made by NMB/Hi-Tek for Advanced Logic Research (ALR) in the early 1990s. It uses black, clicky Hi-Tek 725 mechanical switches, better known as \"space invaders\" switches. There is also an XT/AT interface switch on the bottom.Buyer will receive the exact keyboard pictured here. It is missing the left CTRL keycap. but all keys are working properly. I gave it only a quick cleaning before taking these pictures. I have tested each key with a quad core system running Windows 10. I offer a 30-day return privilege. Shipping rates are calculated by without any fee for handling or packing materials. Local pickup in zip code 60438 is free.