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USB-C female to 5.5 x 2.1 mm DC female adapter cable

Qyouth

Qyouth DC Type-c Female To 5.5*2.1 Female Cables 5521 Jack DC watch accessory

SKU CH-4MEJ-M2WEC

Converts a USB-C port to a 5.5 mm × 2.1 mm DC power jack for watch accessories

  • Size or dimensionsSeries 1
  • Product typeScreen Protector
  • Main material2023-07-17 6-12-49--949
  • Converts USB-C power to 5.5×2.1 mm barrel jack
  • 5521 connector fits common DC-powered devices
  • Female-to-female design needs no soldering
  • New condition ensures reliable first-use performance

DC Type-C to 5.5×2.1 mm power adapter

This cable converts a USB Type-C female port into a 5.5 mm by 2.1 mm DC female jack. It lets users power devices that expect a barrel connector from a Type-C source. The compact Series 1 design suits watch accessories and similar small electronics.

Sustained power delivery through barrel connector

The adapter maintains a continuous electrical path between the Type-C input and the 5.5×2.1 mm output during extended use. No active circuitry is described, so current handling depends on the source and cable quality. Buyers who need voltage negotiation or power-profile selection should look elsewhere.

How it compares

Measured against everything we stock in Watch Bands, Cases & Chargers, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 73% of the 358 comparable items (median $14.99).

Specifications

Product
Product typeScreen Protector
Size & build
Size or dimensionsSeries 1
Main material2023-07-17 6-12-49--949

Questions about this item

Does the USB-C female port on this adapter draw noticeable heat or power when left connected all day?

The adapter is a passive USB-C female to 5.5 mm × 2.1 mm DC jack converter with no active electronics, so it generates no measurable heat and draws no power on its own while idle.

What power source and cable must I already have to use this 5.5 × 2.1 mm jack converter?

You need a USB-C power supply or charged power bank with a USB-C male plug, plus the device that accepts a 5.5 mm outer / 2.1 mm inner barrel connector.

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