We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver aluminium adapter with 4.4 mm female to 3.5 mm and 2.5 mm male plugs

Boxwave

Boxwave 4.4 mm Female to 3.5 mm 2.5 mm Male Audio Adapter Silver

SKU CH-HXCW-DMHFB

Connects 4.4 mm balanced headphones to 3.5 mm and 2.5 mm sources using gold-plated copper contacts in a lightweight aluminium shell

  • TypeAdapters
  • Gold-plated contacts ensure high-fidelity signal transmission
  • 4 mm female to 3.5 mm and 2.5 mm male connectors for versatile compatibility
  • Aluminium alloy shell provides lightweight durability for daily use
  • Compact design allows easy portability with earphones and mobile devices
  • Reduces strain on cables to help prevent damage during connection

Adapter for balanced and single-ended headphones

This adapter connects a 4.4 mm balanced cable to devices with 3.5 mm or 2.5 mm single-ended outputs. Gold-plated copper contacts preserve signal integrity during playback. The aluminium alloy shell keeps the unit light and durable for daily transport. It suits listeners who switch between balanced and unbalanced sources without carrying multiple cables.

Passive signal path with no active circuitry

The adapter draws no power and adds no amplification stage to the chain. Gold plating on the contact surfaces resists oxidation that can degrade quiet passages. Aluminium housing shields the internal conductors from incidental electromagnetic fields. No fan, heatsink or thermal management is required because the component generates no measurable heat.

Consistent performance during extended listening

Because the signal path remains entirely passive, electrical characteristics do not drift as the adapter warms from ambient temperature. Contact resistance stays stable across hours of continuous use. The mechanical junction tolerates repeated insertion cycles without loosening. Users who need active conversion or impedance matching should select a powered device instead.

Highlights

  • Gold-plated contacts ensure high-fidelity signal transmission
  • 4 mm female to 3.5 mm and 2.5 mm male connectors for versatile compatibility
  • Aluminium alloy shell provides lightweight durability for daily use
  • Compact design allows easy portability with earphones and mobile devices
  • Reduces strain on cables to help prevent damage during connection

Specifications

TypeAdapters

Questions about this item

How do I connect the 4.4 mm female end to my earphone cable without bending the pins?

Align the 4.4 mm female socket straight onto the male plug and push gently until it seats fully; forcing it at an angle is the common mistake that bends the internal contacts.

Will the gold-plated contacts need cleaning or replacement over time?

Gold plating resists oxidation, so the 4.4 mm, 3.5 mm and 2.5 mm contacts should not need cleaning or replacement under normal indoor use.

At what point does the aluminium-alloy shell become a thermal limit during long listening sessions?

The adapter is passive and carries only low-level audio signals, so the aluminium-alloy shell does not heat up enough to create a thermal limit during sustained use.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.