The WZ-TDDA is an optional expansion card intended for installation within the DA Converter WZ-DA96. It functions as a receiver for 8-channel/24-bit/48kHz or 4-channel/24-bit/96kHz data in TDIF format, compatible with external DTRS digital tape recorders such as TASCAM models DA838, DA38, DA98, and DA78. The manual provides step-by-step installation procedures, including power disconnection, removal of the standard AES/EBU input block, DIP switch configuration based on the connected recorder model, and securing the card.