Bose Single 1/8" Stereo Female to Single/Dual 1/8" Mono 40399
Commercial Electric 15 Amp Single Outlet Grounding Adapter, Gray U-09 - The Home Depot
Outlet Adapter T33WH for Juno Single Circuit Track - Plug Adapters - Amazon.com
5V/1.5A) Single USB Wall Charger Power Adapter - White (RWX-050150UU) | eBay
AC WORKS 1.5ft Piggy-Back NEMA 14-50P to NEMA 14-30R 50-Amp 4-wire Single To Single Orange Basic Piggy-back Adapter in the Adapters & Splitters department at Lowes.com
5 Pcs 45rpm Vinyl Record Centre-hole Adapters Jukebox 7" Single Spindle Spiders - Turntables - AliExpress
Project Source Adapter 15-Amp 2-wire Single To Single Off-white Basic Standard Adapter in the Adapters & Splitters department at Lowes.com
Sharkk Switching Adapter (5V/1.5A) Wall Charger Single USB - White (HYP-15-1500) (Used) - Walmart.com
Cim-Tek 50163 Single Adapter, 1 1/2" Port, 1 1/2" Nose
LC-UPC Single Mode Duplex Adapter (For Copper Patch Panel), Blue