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Short black cable with a barrel jack on one end and a USB-C port on the other

eForChina

eForChina DC 5.5 x 2.1mm to USB-C Female Power Adapter 30cm Cable

SKU CH-7BZK-VR92X

Converts a 5.5 x 2.1 mm DC jack to a USB-C female port with a 30 cm cable, supporting up to 45 W across 5 V to 20 V profiles

  • Adapter typePower Adapter
  • Powers devices up to 45W from barrel-jack sources
  • Supports 5V, 9V, 12V, 15V and 20V USB-C profiles
  • 30cm cable keeps connections tidy and flexible
  • Compact design fits in any bag or pocket
  • Works immediately with no drivers or setup required

Portable Power Conversion

The eForChina adapter converts a 5.5 x 2.1 mm DC barrel jack into a USB-C female port using a 30 cm cable. It suits users who need to power USB-C devices from existing DC power sources without installing new mains equipment.

Compact Plug-and-Play Build

The small form factor makes the unit easy to carry in a tool bag or laptop sleeve. A direct plug-and-play connection requires no drivers or configuration, so the adapter is ready for immediate use in bench testing, field repairs or temporary setups.

45 W Passive Operation

The adapter supports power profiles of 5 V/3 A, 9 V/3 A, 12 V/2 A, 15 V/2 A and 20 V/2.25 A up to 45 W. With no active cooling, it runs silently and draws only the power needed by the attached device during normal operation.

How it compares

Measured against everything we stock in Other Adapters & Couplers, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 70% of the 1,761 comparable items (median $18.99).

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Specifications

Product
Adapter typePower Adapter

Questions about this item

What USB-C power profiles does the 5.5 x 2.1 mm jack support?

The adapter passes 5 V at 3 A, 9 V at 3 A, 12 V at 2 A, 15 V at 2 A and 20 V at 2.25 A, up to 45 W total.

How long is the cable and what clearance does the barrel connector need?

The cable is 30 cm long; the barrel plug measures 5.5 mm outer diameter by 2.1 mm inner diameter.

Does the adapter need drivers or configuration before use?

No, it is plug and play — connect the barrel jack to your power source and the USB-C end to the device.

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