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Ten small barrel connectors, white plastic with gold tips

eForChina

eForChina 5.5x2.1mm Female to Female Adapter 10 PCS

SKU CH-012R-61BXJ

Pack of ten 5.5×2.1 mm female-to-female power connectors for joining cables

  • Adapter typePower Adapter
  • Ten adapters join two 5.5×2.1 mm plugs in seconds
  • Plug-and-play design needs no tools or drivers
  • PC-and-metal shell resists daily insertions
  • Compact 37 mm length fits tight cable runs
  • Each unit weighs 8.5 g for light builds

10-Pack 5.5x2.1mm Female Coupler

This set includes ten female-to-female adapters with a 5.5x2.1mm barrel interface. Each unit measures 37mm in length and 8mm in diameter. The housing combines polycarbonate and metal for durability. They weigh 8.5 grams each and require no tools to install.

Suits DC power cable extension; not for signal

These couplers join two male 5.5x2.1mm plugs to extend a DC power run for devices such as routers, LED strips or CCTV cameras. They carry only power, so they cannot pass data, video or audio signals. Buyers needing a gender change to a different barrel size or a male-to-female conversion should look at other adapter types.

Verify plug dimensions and polarity before use

Confirm that both cables you intend to join use a 5.5mm outer diameter and 2.1mm centre pin. The supplier notes a 5.5x3.1mm port reference, so check that your 2.1mm pins make reliable contact. Ensure the voltage and current rating of your power supply matches the connected equipment and that polarity is consistent across the link.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 85% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

What power-plug size must my existing cables have to work with the 5.5x2.1mm female ports?

Your cables need a 5.5 mm outer diameter and a 2.1 mm centre pin to fit the ten female sockets supplied.

Will the 5.5x3.1mm port specification on the adapter mate with my older 5.5x2.1mm power leads?

No, the 3.1 mm centre hole is wider than a 2.1 mm pin, so older 5.5x2.1mm plugs will not make reliable contact.

How can I confirm each of the ten adapters passes power correctly after connecting them?

Plug a known-good 5.5x2.1mm supply into one side and your device into the other; the device should power on immediately if the link is sound.

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