Amazon.com: Devinal 1/4 Inch TRS/TS Female to Female Coupler, 6.35mm Jack Stereo Adapter Joiner, Gender Changer Connectors - 4 Pack : Electronics
Livewire Essential Y-Adapter 1/4" TRS Female to 1/4" TS Male Black 6 in. | Guitar Center
Hosa GPP-290 1/4 inch TRS Female to 1/4 inch TS Male Adapter | Sweetwater
Amazon.com: Cable Matters 2-Pack 1/4 TRS to Dual TS Stereo Audio Splitter Cable (Dual 1/4 Inch TS to TRS Female Adapter) in Black - 6 Inches / 0.15 Meters : Electronics
Hosa GPP-290 1/4" TRSF To 1/4" TS Audio Adapter | Full Compass Systems
LBSC 1/4 Inch TRS/TS Female to Female Coupler, 6.35mm Jack Stereo Adapter Joiner, Gender Changer Connectors 4 Pack|Computer Cables & Connectors| - AliExpress
Premium 3.5mm TRS to Dual 1/4 Inch TS Audio Cable (3FT) - Male 3.5mm 1/8" Stereo AUX Auxiliary to 6.35mm 1/4" Y Adapter Connector Wire Cord Plug Jack - Walmart.com
Sound Professionals SP-STEREO-MONO-3.5MM - 3.5mm TS Mono Plug to 3.5mm TRS Stereo Jack Adapter SP-STEREO-MONO-3.5MM
Hosa YMM-261 3.5mm Male TRS to Dual 3.5mm Female TS Stereo Breakout Adapter Cable 6"