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Short black cable with a 5.5 mm barrel plug on one end and a USB-C socket on the other

Ruth's sister

Ruth's sister 5.5 mm × 2.1 mm DC jack to USB 3.1 Type-C female adapter internal power cable

SKU CH-0Z1A-6CZ49

Converts a 5.5 mm × 2.1 mm DC jack to a USB 3.1 Type-C female port for internal power connections

  • Converts 5.5 mm barrel power to USB 3.1 Type-C female
  • Supplies 5 V DC via standard 2.1 mm centre pin
  • Female USB-C socket accepts common cables directly
  • Internal cable design fits inside chassis for clean routing

5.5 mm × 2.1 mm DC jack to USB 3.1 Type-C adapter

This internal power cable converts a 5.5 mm × 2.1 mm DC power jack into a USB 3.1 Type-C female port. It suits builders who need to supply 5 V DC to devices with a Type-C power input using an existing barrel connector. The adapter bridges the connection without active circuitry.

Installation notes and common issues

The cable fits inside a chassis and connects by pushing the barrel plug into the source jack and the device cable into the Type-C socket. Polarity of the 5.5 mm × 2.1 mm jack must match the power supply; a reversed centre pin will prevent operation. The adapter passes 5 V only, so devices that negotiate higher USB Power Delivery voltages will not charge or may fail to start. No driver or configuration is required.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 90% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How can I verify the 5.5 mm × 2.1 mm DC jack is delivering 5 V to the USB 3.1 Type-C female port after installation?

Connect a 5 V DC source to the 5.5 mm × 2.1 mm jack, then plug a USB-C device into the USB 3.1 Type-C female port; the device should power on or charge, confirming the adapter passes 5 V correctly.

What connectors are included on the cable, and do I need to purchase a separate 5 V DC power supply with a 5.5 mm × 2.1 mm plug?

The cable has a 5.5 mm × 2.1 mm DC jack on one end and a USB 3.1 Type-C female port plus a Micro USB female port on the other; a 5 V DC power supply with a matching 5.5 mm × 2.1 mm plug is not included and must be bought separately.

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