AC WORKS 1.5ft NEMA 10-30P to NEMA 14-30R 30-Amp 3-wire To 4-wire Grounding Single To Single Black Basic Flexible Adapter in the Adapters & Splitters department at Lowes.com
Amazon.com : 10 Pack 2.1mm x 5.5mm Female CCTV Power Jack Adapter : Electronics Cable Connectors : Electronics
Renogy Male and Female Connector to SAE Adapter 13 AWG Cable CNCT-MC4-SAE - The Home Depot
9V Korg/Casio Adapter Cable | Songbird FX
Female DC Power adapter - 2.1mm jack to screw terminal block : ID 368 : $2.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: USB 3.0 Female to Female Extension Connector Adapter (2 Pack) : Electronics
Amazon.com: aceyoon Laptop DC Power Adapter Kits 38 PCS Universal 5.5 mm x 2.1 mm DC AC Power Adapter Tips Connector for Thinkpad Power Supply Plug Jack Sets : Electronics
Anderson Power Pole Connector to 5.5 x 2.5mm Female Barrel Power Connector Adapter
AC WORKS Dryer Adapter 3-Prong 30 Amp Dryer Plug to 4-Prong Dryer Female Connector Adapter AD10301430 - The Home Depot
AC WORKS 1 ft. 12/3 STW 15 Amp NEMA 5-15P Household Plug to 20 Amp L5-20R Locking Adapter Cord S515L520-012 - The Home Depot