| Model | Description |
| LK1600 | Programmable alphanumeric keyboard, 120 Programmable Keys, Mechanical Key Lock Switch, Wedge Interface, PS/2 I/F Cable, Daisy Chain Ports, Manual, Utility Software |
| LK1600U | LK1600 with USB interface |
| LK1600-M | LK1600 with 2 Track MSR |
| LK1600U-M | LK1600 with 2 Track MSR, USB interface |