The num lock function is independent of any other keyboard that are currently connected.The mechanical switch keypad can ensure a fast response.
Compare with the other standard keypad, the 21 keys extended some keys at the top, contain Esc,Tab,Back Space,and FN keys.
Mechanical numberic keypad has 3 backlight model and 6 backlight brightness can be adjusted. By simultaneously pressing the FN key and another key, you can change the backlight and brightness.

Applicable models: general
Type: Numeric keyboard
Number of keys: 21 (keys)
Switch: brown
Whether to support plug and play: support
Connection with computer: wired
Whether there are multimedia function keys: none
Shortcut key: none
Do you have hand rest: No
Waterproof function: does not support waterproof
Key technology: mechanical shaft
Backlight function: support backlight
Whether to support ergonomics: support
Line length: 1.5 (meters)
Luminous: white
Pressure feeling: 45g +/- 20g
Style: weak
Backlight mode: 3 types
Brightness adjustment: 6 levels
Suitable for: notebook users; financial, banking and securities workers; counter cash registers; mechanical keyboards without keyboard area
colour:White
Material:ABS+PBT
Size:12.3 x 8.2 x 4.2cm

Package Contents:
1 x Digital Mechanical Keypad