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Two black USB-A to 5.5 x 2.1 mm barrel power cables, 36 inches each

TENINYU TYY-DC55 USB 2.0 A Male to DC 5.5x2.1mm 5V Power Cable 36in 2Pack

SKU CH-A7A3-YKJK9

Two cables convert USB-A ports into 5.5 × 2.1 mm barrel plugs for powering 5 V devices up to 2.5 A

  • Connector count2
  • Connector genderMale to Male
  • Conductor gaugeTYY-DC55
  • Cable shieldingLow voltage
  • Conductor typePlastic
  • Build detailsLow voltage
  • Powers 5V DC devices from any USB 2.0 port
  • 13 copper strands deliver up to 2.5 A reliably
  • 36-inch length reaches peripherals without strain
  • 5×2.1 mm centre-positive barrel fits many devices
  • Two cables included for spare or multi-device use

USB-A to 5.5×2.1 mm DC cable

This two-pack supplies 5 V power from any standard USB-A port to devices that accept a 5.5 mm outer, 2.1 mm inner barrel jack with centre-positive polarity. Each cable is 36 inches long and rated for up to 2.5 A using 13 copper conductors. It suits external drives, speakers, routers or battery packs that draw power from a laptop or desktop USB socket.

Moulded connectors with strain relief

Both ends feature moulded plugs that resist bending fatigue during daily connect and disconnect cycles. The USB-A male plug fits Type-A ports on computers, hubs or power banks, while the coaxial barrel plug locks into matching DC jacks on peripherals. Black PVC sheathing keeps the 24 AWG wires tidy for travel or permanent desk routing.

Replaces dedicated 5 V wall adapters

Carrying these cables removes the need for separate AC bricks when powering compatible 5 V gear from a USB source. The upgrade makes sense for users who regularly move between workstations and want a single cable type for multiple barrel-jack devices. Buyers whose equipment requires a different barrel diameter, voltage or polarity cannot use this cable.

How it compares

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

Price $12.99
Cheaper than about 60% of the 402 comparable items (median $13.99).

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Specifications

Product
Brand nameTENINYU
Model nameTYY-DC55
Product typeNo
Product colorBlack
Ports & slots
Connector count2
Connector genderMale to Male
Size & build
Overall length6 in (15.2 cm)
Conductor gaugeTYY-DC55
Cable shieldingLow voltage
Conductor typePlastic
Build detailsLow voltage

Questions about this item

What current does the USB 2.0 A male interface cap at with this cable?

The cable is built with 13 copper strands and supports 1 A to 2.5 A, so the USB 2.0 A male end will deliver up to 2.5 A in practice.

What barrel jack dimensions must the device have to fit the 5.5 x 2.1 mm connector?

The DC plug measures 5.5 mm outer diameter and 2.1 mm inner diameter with a positive centre pin; the device must match that exact barrel size.

How is the cable installed and what step do people often miss?

Plug the USB A male end into a powered USB port and the 5.5 x 2.1 mm barrel into the device; the step often missed is confirming the device requires 5 V DC and centre-positive polarity before connecting.

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