- Kurzweil Digital Pianos(29)
- Kurzweil Expansion Boards for Electronic Instruments(25)
- DADAT-26 - ADAT Option Card For K2600 And K2600R
- DIO-26 - For Connecting A DMTi To K2600 And K2600R
- FK-1 - Fan Kit For K2000
- HDC-25K - Internal Hard Drive Mounting Kit For K2500
- HDC-25R - Internal Hard Drive Mounting Kit For K2500R
- HDC-26K - Internal Hard Drive Mounting Kit For K2600
- HDC-26R - Internal Hard Drive Mounting Kit For K2600R
- HDC1 - Internal Hard Drive Mounting Kit For K2000 And K2000R
- KDFX - Effect Unit For K2500 And K2500R

- KDS Digital I/O - For Connecting A DMTi To K2500 And K2500R
- P/RAM For K2000 And K2000R
- P/RAM-2 For K2500 And K2500R
- P/RAM-26 For K2600 And K2600R
- PC-88 VGM Expansion Board
- PC2SRIB - Ribbon Controller
- RMB-26 - Soundblock Daughterboard For K2600 And K2600R (needed to install ROM expansions)
- RMB-K - Soundblock Daughterboard For K2000 And K2000R (needed to install ROM expansions)
- RMB-P2 - Soundblock Daughterboard For K2500 And K2500R (needed to install ROM expansions)
- SIMM Memory

- SMP-2K - Sampling Option For K2500
- SMP-2R - Sampling Option For K2500R
- SMP-2X - Sampling Option For K2600 And K2600R
- SMP-61 - Sampling Option For K2661
- Kurzweil Digital Synths(17)
- Kurzweil Workstations(14)
- Kurzweil Patch/Program Banks(12)
- Kurzweil Sound Modules(10)
- Kurzweil Digital Synth Racks/Sound Modules(9)
- Kurzweil Other CDs & Sound Banks(4)
- Kurzweil Multi-Effects Processors(3)
- Kurzweil MIDI Keyboard Controllers(2)
- Kurzweil Other MIDI Controllers(2)
- Kurzweil Analog Modeling Synths(1)
- Kurzweil Digital Converters(1)
- Kurzweil Other Studio Effects(1)
- Kurzweil Other Misc. Products(1)