Medium Panel Mount USB Trackpad with Three Buttons : ID 5061 : $39.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Touchpad Plus" Professional-grade Rigid Silicone Waterproof Keyboard with Touchpad (USB) (Black) | KBWKRC106T-BK by WetKeys Washable and Waterproof Keyboards
Amazon.com: Seenda Touchpad Trackpad, External USB High Precision Trackpad with Multi-Touch Navigation Plug and Play for Windows 10 Windows 7 Desktop/Laptop/Notebook Computer : Electronics
Bosto Wired Usb Touchpad Trackpad For Desktop Computer Laptop Pc User Compatible For Ios System - Touch Pads - AliExpress
USB Multi-Touch Pad and Numeric Keyboard Mashup | WIRED
Compact Touchpad USB Mouse, 2.5x1.9 inches, Frameless – Inclusive Inc
Mini Touchpad Keyboard (White, USB) (Discontinued) - Adesso Inc ::: Your Input Device Specialist :::