25ft 3.5mm (1/8 inch) TRS Stereo Male to 2 x 1/4" (6.3mm) TS Mono Male Cable - PI Manufacturing
Amazon.com: DISINO 1/4 inch TS to 1/8 inch TRS Cable, 1/4" TS Mono to 1/8 inch(3.5mm) TRS Stereo Interconnect Adapter Cable,Mono to Stereo Patch Cord - 10 Feet/3 Meters : Electronics
Mono and Stereo (TRS) Cables - the Basics
6in Value Series™ One RCA Mono Male to Two RCA Stereo Male Y-Cable – BCI Imaging Supplies
Castline Silver 3.5mm TRS to 1/4 TS Mogami 2582 Stereo to Mono Summing Cable with Resistors
Stereo to mono converter cable, 50cm
Balanced Stereo to Mono Summing Cable with Resistors Dual XLR Female to XLR Male | eBay
Amazon.com: 3.5mm Stereo Male to Dual 3.5mm Mono Male Audio Cable, 1ft 3.5mm 1/8" TRS Male to 2 x 3.5mm 1/8" TS Male Y Breakout Cable Splitter Adapter for Headphone, Speaker :
Monoprice Audio/stereo Cable - 0.5 Feet - Black | Rca Plug/2 Rca Jack, Mono Source To Stereo System : Target
Stereo to Mono Audio Output Cable - Azden
Klotz KYI-300 MiniLink Pro Insert Cable [Mono>Stereo] 3m | MUSIC STORE professional
Amazon.com: 1ft CablesOnline 3.5mm Stereo Male to Dual (Rd/Wh) Mono 3.5mm Blue Audio Breakout Cable, AM-601C : Electronics
Stereo-to-Mono Audio Cable for Single-Ear Monitoring for MX PRO and M6 PRO In-Ear Monitors (Black) - MEE audio
Stereo Mini Jack to Mono 1/4" Jack Lead. 3.5mm Mini. Ipod / Amp Cable. Van Damme | eBay