| Model | D-8335 |
| Size | 77*64mm (front panel) |
| Number of Keys | 3 keys |
| Material | Alumina |
| Key travel | 1.5mm |
| Trackball diameter | 38mm resin trackball |
| key switch lifespan | more than 2 million operations |
| Keyswitch technology | Metal dome |
| Mounting style | Panel mount |
| Supply Voltage | +5V DC +/-5% |
| Communication interface | USB or PS2 (optional) |
| Protection Level: | IP54(front panel) |
| Operating temperature | -40 ~+70 |
| Storage temperature | -40 ~ +80 |
| Certificate | CE FCC RoHS Compliant |
| OS support | DOS/Windows95/98/NT/ME/2000/2003/XP/Vista/7,8,10 Linux, Mac,etc |
| MTBF | >20000H |
| MTTR | <30min |
| APPLICATION | Industrial, coal and mine, medical, bank kiosk and self service terminal,explosion-proof automation, oil and gas etc. |
