| Analog-Digital Module | | Timex/Sinclair 1000, Timex/Sinclair 2068 |
| BB-1 Control Module | | Sinclair ZX80, Sinclair ZX81 |
| BB-68 Controller | | Timex/Sinclair 2068 |
| Byte Back Keyboard | | Timex/Sinclair 1000 |
| M-16 Memory Module | | Sinclair ZX80, Timex/Sinclair 1000 |
| M-48 Memory Module | | Sinclair ZX81, Timex/Sinclair 1000 |
| M-64 Memory Module | | Timex/Sinclair 1000 |
| MD-1 Modem | | Sinclair ZX80, Sinclair ZX81, Timex/Sinclair 1000 |
| MD-2B Modem | | Sinclair ZX81, Timex/Sinclair 1000, Downloadable |
| MD-68 Modem | | Timex/Sinclair 2068 |
| Parallel 1000 | | Timex/Sinclair 1000, Downloadable |
| Parallel 2068 | | Timex/Sinclair 2068 |
| Real Time Clock | | Timex/Sinclair 1000, Timex/Sinclair 2068 |
| RS-232 for 2068 | | Timex/Sinclair 2068 |
| RS-232 Module | | Timex/Sinclair 1000 |
| SpectraTERM 1.30 | | Timex/Sinclair 2068, Downloadable |
| UM-16 16K RAM Pack | | Timex/Sinclair 1000 |
| UM-64 64K RAM Pack | | Timex/Sinclair 1000 |