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USB-C male to 5.5 mm × 2.1 mm barrel plug cable, matte black finish

SMUGDESK

SMUGDESK USB-C to DC 5.5×2.1 mm 100 W PD cable 19 V/20 V

SKU CH-7PDM-128W0

Converts USB-C PD power to 19 V or 20 V DC barrel output up to 100 W for 5.5 × 2.1 mm devices

  • Delivers up to 100 W from USB-C PD sources
  • Negotiates stable 19 V or 20 V output via built-in chip
  • Connects USB-C male to 5.5 mm × 2.1 mm DC barrel jack
  • Powers legacy DC equipment from portable power banks
  • Suits DIY projects, routers, monitors and 5521-port devices

USB-C PD to DC 5.5×2.1 mm cable

This USB-C to DC barrel cable converts Power Delivery output into a 5.5 mm × 2.1 mm plug for legacy equipment. It negotiates 19 V or 20 V from compatible power banks or chargers up to 100 W. The built-in PD chip handles voltage selection automatically without user configuration.

Suits owners of 5521 DC devices needing portable

Makers, technicians and mobile professionals with routers, camera systems, drive enclosures or industrial gear that accept 19 V or 20 V input will benefit. Buyers whose hardware requires a different voltage, a larger barrel size or centre-negative polarity cannot use this cable safely.

Check device voltage, polarity

Confirm the target device operates at 19 V or 20 V with centre-positive 5.5×2.1 mm jack before connecting. Verify the USB-C power bank or charger explicitly supports 19 V or 20 V PD profiles at the required wattage. Reverse polarity or insufficient PD negotiation will prevent operation or risk damage.

How it compares

Measured against everything we stock in USB Cords & Extension Cables, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 60% of the 15,227 comparable items (median $14.99).

Specifications

No published specifications for this item yet.

Questions about this item

What USB-C power source must I already have to get 19 V or 20 V from this cable?

You need a USB-C Power Delivery charger or power bank that can negotiate 19 V or 20 V at up to 100 W; the cable's built-in chip requests that voltage automatically.

Will this cable work with my older 5.5 × 2.1 mm barrel device that originally used a 19 V brick?

Yes, if the device accepts 19 V or 20 V and uses a centre-positive 5521 jack; the cable delivers the negotiated voltage through the same barrel connector.

How can I verify the cable is delivering the correct voltage after I plug it in?

Measure the barrel plug with a multimeter set to DC volts; you should read 19 V or 20 V (whichever your PD source negotiated) with the centre pin positive.

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