This cable is designed to split a stereo signal. Black and red colored mono phone jacks indicate left and right respectively. It may also be used to adapt a stereo cable with mono phone plugs to a mini stereo phone jack.

Features:

Connector 1: 3.5mm TRS (stereo) plug (male)
Connector 2: 1/4' TS (mono) jack (female)
Connector 3: 1/4' TS (mono) jack (female)
Length: 6 inches
ROHS compliant

Reviews 1

Resources

Audio Connector Guide
Connector Type	Picture	Explanation and Uses
TS ( Mono) Plug (Male)		This is a TS or mono plug (note the single stripe on the connector) This provides single channel analog audio.
TRS (Stereo) Plug (Male)		This is a TRS or stereo plug (note the two stripes on the connector) This provides a stereo or 2 channel analog audio. Commonly found on headphones
TRRS Plug (Male) 4 Conductor		This is a TRRS 4 conductor plug (note the 3 stripes on the connector) This can provide 2 channel audio plus a microhone. Also capable of 2 channel audio and a video feed. This is commonly found on iPhone headsets and portable DVD players.

Specification

Features & Specs
Connector A:	Type of Connector on Side A of the adapter?	3.5mm TRS (stereo) plug (male)
Connector B:	Type of Connector on Side B of the adapter?	2x 1/4' TS (mono) jack (female)
Form factor	The form factor of this connector?	Straight
Gender	The gender of this connector?	Male to Female