Happy Hacking Keyboard Features by model Features by model

| Model_Name | Model_ | Color | Switch_Type | Interface | Blank_Keytops | Introduced |
|---|---|---|---|---|---|---|
| Happy Hacking Keyboard Professional 2 Type-S | PD-KB400WNS | White | Capacitive | USB | Yes | June 29, 2011 |
| Happy Hacking Keyboard Professional JP Type-S | PD-KB420WS | White | Capacitive | USB | No | June 29, 2011 |