1 foot 20AWG 12V DC Power Cable Male to Male (Plug), ID 2.1mm

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OMNIHIL 10 Feet 2.1millimeters x 5.5millimeters DC Plug Extension Cable Compatible with Power Adapter, 20AWG : Electronics

20AWG 3Pin CCT Male Female Waterproof LED Connector Cable

20AWG 3Pin CCT Male Female Waterproof LED Connector Cable

15-Inch 4-Way Power Splitter Cable - 5.5mm x 2.1mm Barrel Connectors - Works with Battery Eliminator Kits

DC Car Charger Auto Power Supply Cord Cigarette Lighter to DC 5.5mm x 2.1mm Male Connector Extension Cable Adapter Kit - AliExpress

iGreely DC power extension cable is made of 14AWG pure copper, very thick and durable, featuring lower resistivity and better electrical conductivity.

iGreely 10ft 14AWG 12V DC Extension Cable DC 2.1mm x 5.5mm 5521 Power Supply Adapter Flat Extender Cord,Female to Male Wire for CCTV Security

Replacement Car Cigarette Lighter Cable Line Extension Power Adapter Plug Cable Cord Socket 12V DC Interior Parts - AliExpress

12V DC Extension Cable 5.5mm*2.1mm Male Female Power Cord Cable 1m 2m 3m 5m 10m Extend Wire for CCTV Camera DC Extend Power Cord - AliExpress

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DC Power Coupler Male to Male, ID 2.1mm OD 5.5MM

DC Car Charger Auto Power Supply Cord Cigarette Lighter to DC 5.5mm x 2.1mm Male Connector Extension Cable Adapter Kit - AliExpress