GR-Trackpad65 Experimental Kit (DIY Trackpad) (by Usaki Keyboard-Do) * Assembled * Includes key switches (Kailh Choc V2 Deep Sea silent tactile) * Microcontroller USB port reinforced to prevent breakage This is a wonderful product, but I haven't used it much because I don't really know how to use it. Please understand that this was assembled by an amateur before purchasing.