Werewolf VFLEX USB-C to Barrel Jack Adapter
gadgetWerewolf

Werewolf VFLEX USB-C to Barrel Jack Adapter

A small programmable dongle that lets old barrel-jack gadgets accept USB-C power, using interchangeable barrel jack tips and a companion app for voltage profiles and charger scanning.

Gadget verdict
A

Worth it

The VFLEX is a practical, functional converter with demonstrated real-world use across monitors, retro consoles, and recording gear. It solves a genuine compatibility problem, though it needs careful setup and compatible chargers, so it is a real gadget rather than a gimmick.

Retailer$8 dongle, $4 per barrel jack tipvia amazon
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The scorecard

The useful criteria

Build quality
4.5 / 5
Practical utility
4.5 / 5
Value for money
4.5 / 5
Decision guide

Who it works for

Good fit for

  • No soldering or internal modification required
  • Works with many barrel-jack devices: monitors, retro consoles, external drives, recorders
  • Programmable voltage negotiation using USB-C PD protocols
  • Stores settings in non-volatile memory
  • Companion app saves profiles and scans charger capabilities
  • Can draw power from USB-C batteries for portable use
  • Low cost: $8 dongle and $4 barrel jack tips

Consider another option if

  • Requires programming the dongle before connecting to avoid sending wrong voltage to vintage devices
  • Standard USB-C chargers may not support non-standard voltages; PPS is needed
  • Apple 140W charger, as an example, cannot deliver 19V needed by some monitors
  • Multiple barrel jack tips may be needed for different devices
  • Setup takes forethought
Editorial review

The real-world take

The Werewolf VFLEX is a small programmable dongle that brings USB-C power to older barrel-jack gadgets without soldering. It negotiates the voltage the connected device needs, stores settings in non-volatile memory, and works with a companion app to save charger and device profiles. It is an affordable and practical option for retro consoles, monitors, and accessories, though it requires setup and a compatible USB-C PD/PPS charger to reach unusual voltages.