The HT44S10 is a desktop trackball from the DT225 series designed for ergonomic and ambidextrous cursor control. It features non-contacting optical encoders, a 2.25-inch diameter thermoset phenolic ball, and USB 2.0 protocol connectivity with stainless steel shaft and bearings for durability. The device operates over a temperature range of -25°C to +70°C and delivers 180 DPI resolution with a tracking force of 11 grams, supporting up to 5,000,000 rotations with 6 ounces of vertical force. This trackball is ideal for users requiring precise, ergonomic input devices in professional workstations, CAD applications, and extended-use computing environments where comfort and reliability are essential.