We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Six black plastic female DC inline couplers 5.5mm x 2.1mm

Unique-Bargains

Unique-Bargains 5.5mm x 2.1mm DC Female Inline Plug Socket Coupler 6pcs

SKU CH-RKFB-HY0B2

Six 5.5mm x 2.1mm female DC inline couplers join power cables for camera connections

  • Six-piece pack keeps spares on hand for quick repairs
  • 5 mm × 2.1 mm barrel fits common CCTV and LED power leads
  • Female inline socket couples two cables without soldering
  • Plastic body with strain relief protects the joint from cable tugs
  • Light 20 g set adds negligible weight to tool kits

Six Female DC Couplers

This pack contains six straight-blade inline couplers with a 5.5mm outer and 2.1mm inner diameter. Each black plastic socket joins two male barrel plugs to extend a low-voltage DC cable run. The 20g net weight confirms a lightweight component suited to portable or fixed installations.

Diameter Limits Current Capacity

The 5.5mm by 2.1mm barrel size is the practical constraint; it only fits matching male plugs and cannot carry the higher currents that larger coaxial connectors handle. The plastic housing and strain relief are rated for typical camera and LED strip voltages, not for mains or high-power distribution.

Push-Fit Install with Polarity Check

Installation is a simple push-fit of two male plugs into the female ends; no tools or soldering are required. The most common issue is reversed polarity because the coupler passes the centre-pin connection straight through, so verify tip-positive wiring on both sides before powering the device.

How it compares

Measured against everything we stock in AC Plugs & USB Wall Chargers, at today’s prices. Recalculated every night.

Price $4.99
Cheaper than about 90% of the 547 comparable items (median $17.99).

Specifications

Product
Brand nameUnique Bargains

Questions about this item

Should I pick the 5.5 mm by 2.1 mm version for my device?

Choose this coupler only if your equipment uses a 5.5 mm outer diameter and 2.1 mm centre pin; other sizes will not make a secure connection.

What does the 41 mm length mean when the coupler is installed?

The inline body adds roughly 41 mm between the two cables, so allow that extra space in tight enclosures or camera rigs.

Does the DC female interface limit the voltage or current I can run through it?

The plastic barrel jack carries the voltage and current your power supply and device agree on; the coupler itself does not impose a separate limit.

More in AC Plugs & USB Wall Chargers

Similar items