| Model | Description |
| MR2000 | MR2000, Tracks 1 & 2, Programmable, Keyboard Wedge |
| MR2000U | MR2000, Tracks 1 & 2, Programmable, USB Keyboard Emulation |
| MR2300 | MR2300, Tracks 1, 2 & 3, Programmable, Keyboard Wedge |
| MR2300U | MR2300, Tracks 1, 2 & 3, Programmable, USB Keyboard Emulation |