Chinese
Standard Type 5109A,5211A
  BTC 5109A Entry Level Keyboard
  Features:

5109A is an easy to use basic keyboard. The 5109A comes in a compact design that fits any desktop. 
If you are looking for a basic, compact and reliable keyboard, then the 5109A is the product for you.
- can be used in Window 98SE/ME/2000/XP 
System Requirement:
1. IBM PC Compatible
2. PS/2 port 
3. Microsoft Windows 98SE, Windows ME, Windows 2000 or Windows XP operating system 
Specifications:

Key numbers 104/105 (US/UK) 
Switch activation mechanism Membrane
Input power 5 Vdc, 50 mA
Travel distance 3.5 +/-0.5 mm
Peak load before make 55 +/- 20 g
Keyboard dimension 463(L) x 201(W) x 29.5(H) mm
Keyboard weight  0.67 kg 
Ħ@
  BTC 5211A Desktop Keyboard
  Features:

- Compact design
- Simple to use
System Requirement:
1. IBM AT, PS/2 PC and its compatibles
2. Microsoft Windows NT 4.0, Windows 95, Windows 98, Windows 2000, Windows ME or Windows XP operating system
3. PS/2 port
Specifications:

Key numbers 104/105/107/109 (US/UK/BR/JP)
Input power 5Vdc, 50 mA
Connector & pin assignment DIN 5-pinĦA45˘X pitch or Mini-DIN 6-pinĦA36˘X pitch available
Switch activation mechanism Membrane
Travel distance
3.5 +/-0.5 mm
Peak load before make (normal key) 55 +/- 20 g
Keyboard dimension 467(L) x 218(W) x 30(H) mm
Keyboard weight 0.63 kg

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