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Heng Yu is a Hong Kong based company, with a strong R&D center in our Hong Kong headquarter and powered by our own modern production campus in Zhuhai (Guangdong, China). The two offices are linked up together by the world’s largest and amazing bridge over the sea.

Get In Touch

Phone: +852 2394 1852
Address: Room 1503-05, NanFung Commercial Center, 19 Lam Lok Street, Kowloon Bay, HK

Our Location

852-2394 1852




Main Features

  • Make of stainless steel key, robust
  • With 15 metal keys,full travel distance,with good tactile feeling
  • Spill-proof design,all holes are sealed,with the water drainage hole at the bottom
  • With 15kg strain relief on the cable, preventing the cable from being pulled out of the keypad

Technical Data


Power supply

  • PS/2: +12V/DC ±10%
  • USB: +5V/DC ±5%

Current input

  • PS/2: <100mA
  • USB: <100mA
  • MTBF: 25,000 hours



  • Total travel:    4 – 0.4mm
  • Pre-travel:    2 ± 0.6mm
  • Peak load before make:    75 ± 20cN


  • Storage temperature:    -40°C to +60°C
  • Operating temperature:    0°C to +50°C
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