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Short cable with USB-C female port and 5.5×2.1 mm DC female jack

SMUGDESK

SMUGDESK USB-C Female to DC 5.5×2.1 Female Power Adapter Cord

SKU CH-3QYA-JW5X9

Converts a USB-C power source to a 5.5×2.1 mm DC jack for routers, cameras and LED strips

  • Converts USB-C power to 5.5×2.1 mm DC jack
  • Fits standard 5521 DC plugs on routers, cameras and LED strips
  • Power-only design — no data, video or OTG support
  • Short flexible cord suits tight desktop and DIY spaces
  • Female-to-female layout requires separate USB-C and DC male plugs

Purpose and audience

This USB-C female to DC 5.5×2.1 female adapter cable converts a Type-C power source to a standard 5521 DC jack. It is intended for hobbyists, technicians and DIY builders who need to power routers, CCTV cameras, LED strips or small industrial controllers from a USB-C supply. The cable carries power only and does not support data, video or OTG functions. Users must verify that voltage and current ratings match between source and device before connecting.

Capacity and headroom

The adapter passes power through a 5.5 mm outer and 2.1 mm inner barrel interface, a common size for low-voltage electronics. It comfortably handles typical router, camera and LED lighting loads within the limits of the connected USB-C supply. The cable has no active regulation, so it runs out of headroom if the source cannot deliver the current the end device demands or if the voltage level is mismatched. Always confirm ratings on both sides to avoid damage.

Practical limits of the interface

The USB-C female port accepts only a male Type-C plug from a power source; it does not negotiate power delivery profiles or transmit data. The 5521 DC female jack accepts a standard 5.5×2.1 mm male barrel plug from the target device. Because the cable is female-to-female, separate male plugs are required on both ends to complete the circuit. No driver or configuration is needed, but the user bears full responsibility for voltage and current compatibility.

How it compares

Measured against everything we stock in Jumper & Adapter Power Cords, at today’s prices. Recalculated every night.

Price $13.99
Typical for this category: the median of 402 items is $13.99.

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Specifications

No published specifications for this item yet.

Questions about this item

Will this adapter work with my existing USB-C power supply and a router that uses a 5.5×2.1 mm DC jack?

Yes, the cable converts a USB-C female input to a 5.5×2.1 mm DC female output, so you can connect your USB-C power supply and the router's DC plug as long as voltage and current ratings match.

How can I confirm the adapter is delivering power correctly once I have connected everything?

The target device should power on normally; since the cable carries only power signals with no data or video, a successful boot or LED indication on your router, camera or LED strip confirms correct operation.

What comes in the package and which extra plugs do I need to buy separately?

Only the female-to-female conversion cable is included; you must supply a USB-C male plug from your power source and a 5.5×2.1 mm DC male plug for your device.

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