Operating Force:   55 ± 10 ( gm )
  Total Travel:   3.5 ± 0.5 ( mm )
  Net Weight per carton:   11 ( kg )
  Gross Weight per carton:   14 ( kg )
  Cable Length:   1.5 ( M )
  Keyswitches:   Membrane switch with tactile feedback
  keycaps type:   Laser printing Low profile
  Connector:   PS/2、 AT or USB
  Power consumption:   DC 5 V ± 5%, 100mA max. ( mA )
  Operating Temperature:   -10 ~ 60 ( oc )
  Storage Temperature:   -20 ~ 60 ( oc )
  Operating Humidity:   10% to 95 % ( RH )
  Switch Life:   10 million cycles
  Packing:   20pcs/carton