{"product_id":"dc-barrel-plug-adapter-female-2-1mm-to-male-2-5mm-rc-x2555c1","title":"DC Barrel Plug Adapter, Female 2.1mm x 5.5mm to Male 2.5mm x 5.5mm, 20 AWG | RC-X2555C1","description":"\u003ch3\u003eDC Barrel Plug Adapter — Female 2.1mm x 5.5mm to Male 2.5mm x 5.5mm | Part RC-X2555C1\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRC-X2555C1\u003c\/strong\u003e is a compact, heavy-duty DC barrel conversion cable that solves one of the most common power compatibility problems: your power supply or extension cable has a \u003cstrong\u003e2.1mm barrel output\u003c\/strong\u003e, but your device requires a \u003cstrong\u003e2.5mm barrel input\u003c\/strong\u003e. No cutting, no soldering, no rewiring — just plug in and go.\u003c\/p\u003e\n\u003cp\u003eBuilt with thick \u003cstrong\u003e20 AWG pure copper wiring\u003c\/strong\u003e and a flexible 3-inch cable, it delivers maximum current with minimal voltage drop, making it suitable for demanding applications like CCTV cameras, LED drivers, and power distribution blocks.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e RC-X2555C1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput (Female End):\u003c\/strong\u003e 2.1mm (ID) x 5.5mm (OD) barrel socket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput (Male End):\u003c\/strong\u003e 2.5mm (ID) x 5.5mm (OD) barrel plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Gauge:\u003c\/strong\u003e 20 AWG pure copper (not CCA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e ~3 inches (compact pigtail design)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolarity:\u003c\/strong\u003e Passes through — center positive in = center positive out\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Upgrades:\u003c\/strong\u003e Use a standard 2.1mm wall adapter with devices that require a 2.5mm input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Compatibility:\u003c\/strong\u003e Link 2.1mm extension cords or splitters to 2.5mm power distribution blocks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCCTV \u0026amp; Security:\u003c\/strong\u003e Adapt 2.1mm camera power supplies to 2.5mm camera inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Lighting:\u003c\/strong\u003e Connect 2.1mm power supplies to 2.5mm LED driver inputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProject Enclosures:\u003c\/strong\u003e Quickly adapt mismatched barrel connectors without custom wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Does this change the polarity?\u003c\/strong\u003e\u003cbr\u003eA: No. The RC-X2555C1 passes polarity straight through. Center positive in = center positive out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 2.1mm and 2.5mm barrel connectors?\u003c\/strong\u003e\u003cbr\u003eA: The inner diameter (ID) of the center pin is 2.1mm vs. 2.5mm. The outer diameter (OD) is the same at 5.5mm. They look similar but are not interchangeable without an adapter like this one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Need the reverse — 2.5mm female to 2.1mm male?\u003c\/strong\u003e\u003cbr\u003eA: See our RC-X2155C1 for the reverse conversion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the maximum current this adapter supports?\u003c\/strong\u003e\u003cbr\u003eA: The 18 AWG pure copper conductors support up to approximately 5–7A for a 3-inch run. Always verify against your power supply's rated output.\u003c\/p\u003e","brand":"PHC Enterprise, Inc.","offers":[{"title":"Default Title","offer_id":39764882456689,"sku":"RC-X2555C1","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2082\/0601\/products\/RC-X2555C1_b_0a75e422-ec2b-42e5-aba7-7af29d39a951.jpg?v=1779905954","url":"https:\/\/www.acdcpowershack.com\/products\/dc-barrel-plug-adapter-female-2-1mm-to-male-2-5mm-rc-x2555c1","provider":"AC-DC PowerShack","version":"1.0","type":"link"}