Proudly introduces the latest addition to our grid-pointer-cursor (GPC) product line, the iOne LIBRA 90 Ergo Trackball system! Ambidextrous (right or left handed) capacity and a detachable wrist rest make this space-saving mouse alternative an ergonomic masterpiece. Ergonomically contoured and shaped to the human palm, hand, and wrist, our Ergo Trackball comfort combo offers professional, drafting-grade resolution weighing in at a full 6400 dots per inch!

Libra 90 Ergo Trackball offers a trio of rugged, tactile response keys - you know what we mean... you press, you feel the spring, you hear the click - this is the way trackballs (and everything else) should be made! Along with the scroll lock button

Ergonomic, handsome, three micro-switched force feedback keys/buttons - it's hard not to fall for the Ergo Trackball... and with compatibility for PS/2 or USB. you're out of excuses! Get one today, and experience the precise motion and fluid control of opto-mechanical technology at its finest. But you've been warned... get the Libra 90 Ergo Trackball, and you may never go back to any other mouse or generic trackball system again!

Product Feature:
φ 51 mm opto-mechanical trackball
3 standard mouse buttons for control
High reliable micro-switches
Removable wrist rest pad
PS/2 default with USB adapter
opto-mechanical mouse
Perfect matches with iOne scorpius M10 mechanical keyboard.

Specifications:
Designed to work with IBM PC compatible
Compatible OS: Win98SE/2000/ME/XP
Operating temperature : 0℃ to 50℃.
Operating humidity : 10% to 85%
Supply voltage : 5 V±%
Current consumption : Max 40 mA
Switch : 1,000,000 life cycles
FCC, CE, ESD and BSMI certification

System requirements:
IBM or compatible PC
Windows 98SE/2000/ME/XP/Vista
No driver needed under Windows 2000/ME/XP/Vista

Package contains:
Libra 90 Trackball
Wrist pad
Driver diskette
User guide

Measurements:
Product Dimension: 5.75"(L) x 7.75"(w) x 2.5"(H) inch {With Wrist pad}
5.75"(L) x 4.75"(W) x 2.5"(H) inch {Without wrist pad}