1. Button: 68 buttons, imported printed brushed SUS304 stainless steel.

2. Button strength: 1.2N +/- 0.1N (contact force)

3. Mutual capacitance sensing:

X/Y axis position detection resolution: 40counts/mm

Trackball resolution: X>200dpi; Y>190dpi (optional mechanical or photo sphere)

x/y position report: relative

Sensing range: 65*49mm

Touch tracking speed: >1.016 m / sec

Power supply voltage: 5V ± 0.25V

Rated current: 17 mA

4. Rear panel: 3.0mm thick brushed aluminum plate

5. Front panel: imported printed brushed SUS304 stainless steel, 1.5mm thick

6. Weight: 2kg

Electrical parameters:

1. Working voltage: DC +5V +/- 5%

2. Working current: 10mA

3. Electromagnetic radiation: EN50081-1

4. Electromagnetic immunity: EN50082-1

5. Electromagnetic compatibility standards: 89/336/EEC EN55022:1988+A1:2003 EN55024:1988+A1:2001+A2:2003

6. Expected service life: >5 years

7. Button switching technology: conductive carbon particles / gold-plated PCB

8. Interface technology: PS2, USB optional

9. Operating System: DOS/Windows95/98/NT/ME/2000/2003/XP/Vista, Linux, Unix, Mac osx

Environmental adaptability:

1. Atmospheric pressure: 60-106Kpa

2. Salt spray test: 96 hours, IEC60512-6

3.40 °C high humidity test: 21 days, IEC60512-6

4. 85 ° C high drying test: 10 days, IEC60512-6

reliability:

1. Dustproof and waterproof: IP65 (surface)

2. Riot rating: IK09

3. Key life 2 million operations / per key

4. Average failure time > 50,000 hours

5. Average repair time <30 minutes

Special button description:

This keyboard is used in the same way as a normal PC keyboard. The FN function key can be used in combination with the F1-F12 key. Only htp:// http:// , ftp. www. , @ , .com The four buttons are used when they are online, so they need to be used in English.

The specific use method is as follows: switch the input method to the English state EN, press htp:// http:// , ftp. www. , @ , .com to get the corresponding key value. After use, it can be washed with water, disinfectant, alcohol or other cleaning solution.