The CST3645 Vertical Mouse allows the hand to adopt a nearly vertical (approximately 60°) hand position while mousing. The unit has raised 'ridges' where the hand and thumb make contact with the mouse to prevent pockets of heat from forming when using the mouse for extended periods of time. The thin contoured left and right click buttons are on the right side of the mouse (with a clickable vertical scroll wheel nested between), and two convenient thumb buttons perform Back and Forward actions. There is a dpi toggle on top of the mouse to adjust between 600, 1000 and 1600 dpi. A removable palm support 'surround' at the rear of the mouse prevents the edge of the hand from dragging on the surface when moving the mouse, encouraging mouse movements to be made with the entire arm.

The PC-Trac from Clearly Superior Technologies is a robustly built trackball line offering options and features not readily available in other trackballs.The low profile of the PC-Trac acts as a natural hand rest mirroring the natural contour of your hand and is designed to easily accommodate both right and left-hand use, as well as different size hands.

Unlike most trackballs on the market, the high density phenolic trackball in the PC-Trac has significant inertia. This provides far more tactile feedback than that normally offered trackballs, while still offering smooth response to even a light touch. The PC-Trac also offers "dynamic acceleration" which increases distance covered proportional to the speed of rotation. This feature ensures fine control as well as offering accurate rapid movement when required. (See the Features section on the Detailed Specifications Page for a deeper explanation of this feature.)

PC-Trac basic models offer both "middle click" and "drag lock" functions (see the Features for more details.) On the Pro models this button only supports "middle click" but there is downloadable software available which enables individuals to customize their trackball features. There is also a 5-button model which offers 2 input jacks for the connection of optional external switches.

The PC-Trac is now available from PI Engineering as the X-Keys O-Trac

The L-Trac from Clearly Superior Technologies combines a high level optical sensor capable of resolutions up to 1600 CPI (counts per inch) with the robust build for which the original PC-Trac line is well-known. The L-Trac features an optical laser sensor that offers "button selectable" tracking resolutions of 400, 800 and 1600 CPI, easily changed on the fly. Combined with this is the ability of the L-Trac to track at speeds exceeding 30 inches per second, even at a 20G acceleration rate. An optional scroll wheel (available on select models) is smooth and readily accessible, located above the center button.

The L-Trac provides users with a precision, high performance pointing device. The large 57 mm diameter weighted trackball produces predictable, quick, and precise cursor control. Most users will find that movement becomes intuitive within a few minutes of use, with the level of control increasing over time.

The level of performance and range of features, coupled with the proven contour of the L-Trac makes these trackballs an appropriate option for all applications including general computing, gaming and Computer Aided Design (CAD). CAD users love it because you can drag a line one pixel even on high resolution displays. Then, with a button stroke, they can fly around the screen to get general tasks done. Gamers have called it an "almost unfair advantage", citing the fingertip control and precision, high performance tracking.

Designed to minimize the effects of contamination build up and the resultant degradation of performance, this high performance laser trackball uses highly polished stainless steel rollers. It has been found by CST that the "ruby ball sliders" used in most optical trackballs, cause performance degradation when gunk builds up on them. The L-Trac uses mirror polished stainless steel rollers do not readily collect unwanted material and are easily cleared by spinning the ball rapidly. The Dupont Delrin bearings are embedded with Teflon and internally coated with a lifetime lubricant making the feel of this trackball extremely smooth and it's reliability very robust. The user-replaceable stainless steel rollers are extremely tough and designed to handle hard usage yet still provide users with controlled smooth movement.

The L-Trac is now available from PI Engineering as the X-Keys L-Trac