Help identifying Flashback Cable

Looking for help identifying what the intended use of this cable is for. Photo shows the two ends of the cable (one end has a 5 and 4 pin, the other a 5 pin).

Thx in advance for any help.

It’s a Y cable. We can’t discuss it here so Google is your friend :slightly_smiling_face:

It’s an unauthorised modification to Naim equipment. Best not used, and discussion of which falls outside of forum AUP.