Medium Panel Mount USB Trackpad with Three Buttons : ID 5061 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits
DIY USB? Touchpad] reuse old laptop parts (Synaptics, Asus M67n)
Adesso Easy Cat Glidepoint GP-160UB - touchpad - USB - black - GP-160UB - Mice - CDW.com
Perixx PERIBOARD-525 US, Wired Mini USB Keyboard with Touchpad - X Typ – Perixx USA
New Usb Touch Synaptics Touchpad Mini Explorer Touch Mouse For Industrial Numerical Control Cabinet Pc Windows And Android - Touch Pads - AliExpress
Contoured Ergonomic Keyboard with Built-In Touchpad (USB) - Adesso Inc ::: Your Input Device Specialist :::
USB Touchpad - Wired Trackpad with Multi-Touch Navigation Plug & Play Touchpad for Windows 7 and Windows 10 PC Desktop, Laptops, Computer - Walmart.com
New Usb Portable Touch The Touchpad Explorer Touch Mouse For Industrial Design Pc - Mouse - AliExpress
USB Multi-Touch Pad and Numeric Keyboard Mashup | WIRED