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Two black cylindrical DC adapters, 7.4mm male to 5.5mm female connectors

Unique-Bargains

Unique-Bargains DC Power Adapter 7.4mm x 5.0mm Male to 5.5mm x 2.1mm Female 2pcs Black

SKU CH-QXQY-T1CK5

Two DC power adapters convert a 7.4 mm × 5.0 mm male plug to a 5.5 mm × 2.1 mm female jack for extending or repairing cables

  • Product typePower
  • Connects 7.4 mm male plugs to 5.5 mm female sockets
  • Two adapters included for spare or dual-device use
  • Compact 52 mm × 17 mm × 13.5 mm body fits tight spaces
  • Black finish suits CCTV and small-electronics projects
  • Male-to-female design simplifies camera power installation

DC Power Adapter for CCTV and Small Electronics

This pack contains two DC power adapters that convert a 7.4mm x 5.0mm male plug to a 5.5mm x 2.1mm female jack. They are designed for external power sources and on-board transformers in small electronics projects and CCTV installations. The compact black connectors measure 52mm x 17mm x 13.5mm and simplify camera wiring or cable repairs.

Barrel Connector Interface Limits

The adapter bridges two common barrel connector sizes but does not change voltage or current ratings. Polarity follows the source plug and must match the device requirement. No regulation or protection circuitry is included, so the connected power supply must already suit the load. Physical strain relief depends on the host cable assembly.

7.4mm x 5.0mm Male to 5.5mm x 2.1mm Female

This specific tip conversion is the deciding factor for compatibility. The male end fits a 7.4mm outer diameter, 5.0mm inner diameter port while the female end accepts a 5.5mm outer diameter, 2.1mm inner diameter plug. Verify both dimensions on your equipment before purchase.

How it compares

Measured against everything we stock in AC Extension Cords, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 92% of the 864 comparable items (median $15.99).

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Specifications

Product
Brand nameUnique Bargains
Product typePower

Questions about this item

Should I choose the two-piece pack or look for a single adapter?

The listing supplies exactly two adapters in one pack, so you get a spare or can fit two devices at once.

What does the 7.4 mm by 5.0 mm male to 5.5 mm by 2.1 mm female sizing mean when I plug it in?

The larger 7.4 mm male end inserts into your power source while the smaller 5.5 mm female jack accepts a standard 2.1 mm centre-pin plug from your device.

Does the 5.5 mm by 2.1 mm barrel interface limit voltage or current in practice?

The barrel connector itself carries no built-in voltage or current rating; the safe limit depends entirely on the power supply and cable you attach.

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