This is a genuine well maintained model M( clicky /buckling springs) that is improved for more durability compared to other Model M. This one has been bolt modded for durability and sturdiness and a USB controller added to make it more adapt for todays usage by Phosphor Glow who works on many Model M. The rivets on model ms that are not bolt modded come broken and break over time. It comes with the USB B to A cable already and a rare/valuable Bro Caps Artisan keycap. I do not have the original ESC key but you can get one original here for cheap in ebay if desired. I love this keyboard but need to cover some sudden expenses. They keyboard only has 1 very small blemish shown on the 5th picture but works well and very clicky! And free shipping!