機械性能 開關操作力：60±15GF按鍵操作力：80±20GF 3D按鍵操作力：170±30GF（鼠標按鍵中心的垂直力） 開關使用壽命300萬次 電纜線長150±1%CM 電氣性能 適用機型：IBM/PC/AT/XT/386/486/PENTIUM 操作系統環境：DOS，WIN95/98/2000/ME/XP/NT/vista 工作電壓：DC5±5% 工作電流：≤100MA 工作條件 溫度：-45oC-50oC 濕度：不高于85%RH All kinds of injection colors or rubber coating colors available adopts optical orientation technology, high accuracy and reliability Easily get online to send and get your Emails. Intelligent Internet functions Zoom in and zoom out functions Buttons life over 1,000,000 times USB and U+P Combo port available Resolution 800DPI Working on any surface except glass surface Compatible with Win 9x/2000/XP/ME/NT/Vista