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Black USB-A to 4.0×1.7 mm barrel jack cable, 80 cm long

Ruth's sister

Ruth's sister USB Male to 4.0x1.7mm 5V DC Barrel Jack Power Cable 80cm

SKU CH-M2JT-3GQK6

USB male connector delivers 5 V at up to 2.0 A through a 4.0 × 1.7 mm barrel jack on an 80 cm cable

  • Powers small 5 V devices from any USB port with a 4.0 × 1.7 mm barrel plug
  • Delivers up to 2.0 A through 80 cm of flexible black cable
  • Centre-positive polarity matches common camera and accessory power inputs
  • USB 2.0 male connector fits standard Type-A sockets on computers or chargers
  • Compact plastic-and-metal construction suits portable or permanent installations

Purpose-built power cable

This USB male to 4.0x1.7mm barrel jack cable supplies 5V DC power from any standard USB 2.0 port to compatible cameras and small electronics. The 80cm length offers flexible placement without excess slack. Rated for up to 2A current, it suits devices that draw modest power from a USB source. Polarity is centre-positive, so check your device before connecting.

Build and daily handling

The cable uses a black plastic and metal construction with a standard USB Type-A plug on one end and a 4.0mm outer, 1.7mm inner diameter barrel connector on the other. No additional packaging is included, so the single cable arrives ready to route inside an enclosure or behind equipment. The fixed 80cm run means you cannot adjust length, but the slim profile eases cable management in tight spaces.

When the upgrade makes sense

This cord replaces a lost or damaged proprietary charger for hardware that accepts 5V via a 4.0x1.7mm jack, eliminating the need for a dedicated wall wart. It is not for devices that require higher voltages, different barrel sizes, or more than 2A of current. Buyers who need a longer run, a right-angle connector, or a locking barrel should look elsewhere.

How it compares

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

Price $9.99
Cheaper than about 80% 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

What USB standard does the male connector use and what voltage does it deliver?

The cable uses a USB 2.0 male connector and provides 5 V DC from the USB port.

What barrel jack size does the cable terminate in and what is its polarity?

The cable ends in a 4.0 × 1.7 mm DC barrel jack with centre-positive and outer-negative polarity.

How is the cable connected and what orientation mistake should be avoided?

Plug the USB 2.0 male end into a USB power source and the 4.0 × 1.7 mm jack into the device, ensuring the centre pin is positive to match the marked polarity.

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