Audio adapter Rode HJA-4 — 3.5mm TRS (female) to 1/4" TRS (male)

The Rode HJA-4 is a pack of four compact audio adapters that convert a 3.5 mm TRS (female) connection to a 1/4" TRS (male) plug. Designed to connect headphones or line-level devices with a 3.5 mm jack to professional audio equipment with a 1/4" socket, the adapters preserve stereo signal paths and provide reliable mechanical and electrical coupling for studio, stage, and home audio setups. They are particularly suitable for use with Rode devices such as the RodeCaster Pro and the AI-1.

Advantages

The HJA-4 pack contains four metal-bodied adapters that ensure stable connection and consistent stereo channel mapping when converting between 3.5 mm and 1/4" TRS sizes. Their compact design reduces strain on headphone cables and the solid construction improves contact reliability in frequent-use environments.

Suitable for

• Connecting consumer headphones (3.5 mm) to mixers, audio interfaces, and amplifiers with 1/4" sockets
• Use with RodeCaster Pro and AI-1 for monitoring and playback
• Studio sessions, live sound setups, and home audio systems

Key specifications

• Type: 3.5 mm TRS (female) to 1/4" TRS (male) adapter
• Quantity: pack of 4 adapters
• Compatibility: preserves stereo (TRS) connections
• Brand / MPN: Rode HJA-4
• EAN: 698813006885

How to use

Insert the 3.5 mm headphone plug into the adapter's female jack, then plug the 1/4" male end into the equipment's headphone or line-level socket. Ensure the connections are fully seated to maintain stereo channels and avoid intermittent contact. Remove by pulling the adapter straight out from the socket to prevent cable strain.

Usage recommendations

For consistent performance, use the adapters with properly seated plugs and avoid excessive bending at the connection point. Store the adapters in a dry place when not in use and keep the contacts clean to minimise wear and oxidation.