This Split Ergonomic Mechanical Keyboard Features a Trackball Mouse - Hackster.io
Desktop Ultimate Keyboard Integrated Trackball (PS2) (Black) | DU-5K-TB-PS2 by iKey from WetKeys Washable and Waterproof Keyboards
Amazon.com: Perixx Periboard-522 Wired Trackball Mechanical Keyboard, Build-in 2.17 Inch Trackball with Pointing and Scrolling Feature, Durable 3.2lbs Weight : Electronics
Meterk E30 2.4GHz Wireless Keyboard with Trackball Mouse Scroll Wheel Remote Control for Android Smart TV PC Notebook Black - Walmart.com
IOGEAR Wireless Smart TV Keyboard with Trackball GKB635W B&H
Amazon.com: Ergonomic Keyboard, 2 in 1 Wireless Computer Keyboard and Trackball Mouse Combo Design with Wrist Rest, Split Keyboard, USB Keyboard for Windows/Mac/Laptop/Computer/PC-Black : Electronics
Teclado Trackball de B-Move, buena idea para centros multimedia