(619) 579-1762- Phone

(619) 579-1764 - Fax


Clearly Superior Technologies, Inc.
9640-B Mission Gorge Rd. #307

Santee, CA.  92071

United States




What makes this model different?

  • The CST1350SA is a Switch Adapted (SA) version of CST1350. The SA version allows the users to connect external buttons to the corresponding jack which disables the on-board buttons. With the external button plugged in the switch then can be moved to a location which the user finds better. A CST1350SA offers great customization to any user.  

  • The CST S-button External Button specifically designed for CST Trackballs is now available.

Product Features:

The large, high-density ball and shape of the Pc-Trac  case act as a natural hand rest that mirrors the contour of the hand. Combined with the special "Ambidextrous" feature, the Pc-Trac trackball accommodates both right and left-handed users and hands of all sizes. No need to move your arm or rotate your wrist from side to side.  You will enjoy this desktop trackball's ability to dynamically accelerate across the screen as you turn the ball faster!

Made in America with only the highest quality components and materials, Clearly Superior trackballs (formerly produced by Microspeed Inc.) have a reputation for reliability and performance. The large precision-ground ball and mirror-finished rollers deliver "smooth-as-silk" feel and effortless control

These easy to use, large trackballs are well suited for those with disabilities and physical handicaps.  CST also offers "switch adapted" trackball models that allow the use of external switches for persons with motor control disabilities.

Product Dimension:

* Width 3.75" (9.5cm)

* Length 6.75" (17.1cm)

* Height 1.75" (5cm)

* Height w/ Ball 2.65” (6.75cm)

* Ball Size: 2.25"

* Ball Type: high-density phenolic

* Bearings: Duponttm Delrintm with Teflon

* Shafts: Nickel plated alloy

* Construction: High Impact ABS


USB with a USB to PS/2 Adapter

Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, Windows 2000, Windows 98SE and ME, most versions of Linux including Google Chrome OS, MAC OS9 and later and any other USB 2.0 Full Speed compatible operating system such as Sun Solaristm.