- 4-Port Digital Hybrid Extension Card
- Digital telephones in the KX-DT300-series, KX-T7600-series, KX-T7400-series and KX-T7200-series are all supported
- Analog proprietary telephone in the KX-T7700-series, KX-T7300-series, KX-T7100-series and KX-T7000-series are all supported
- Supports single line analog devices, such as fax machines, credit card readers, modems and single line analog telephones
- For use with the KX-NCP500 and KX-NCP1000
- DHLC4
- KX-NCP1170