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Compatibility guide

Cables for FiiO

FiiO’s FH, FA, FD and FX series IEMs, including the FH3, FH5, FH7, FH9, FH15, FA7, FA9, FD5, FD7 and FX15, use MMCX. Choose MMCX. A few FiiO and JadeAudio models use 0.78 mm 2-pin; the table shows each one.

Quick facts

Connection

FH9

MMCX

Manufacturerfiio.com: FiiO FH9
FD7

MMCX

Manufacturerfiio.com: FiiO FD7
FA9

MMCX (FiiO calls it expanded MMCX)

Manufacturerfiio.com: FiiO FA9
Option to choose

MMCX

Null Audio configuratorNull Audio configurator, Headphone connection

Models

Which option for each model

Each row shows the option to choose.

FX15 (2024)

Choose MMCX. MMCX.

Manufacturerfiio.com
JH5 (2024)

Choose Standard 2-pin (0.78 mm). 2-pin 0.78 mm.

Published reviewheadfonia.com
FD11 (2023)

Choose Standard 2-pin (0.78 mm). 2-pin 0.78 mm.

Manufacturerfiio.com
FH11 (2023)

Choose Standard 2-pin (0.78 mm). 2-pin 0.78 mm, recessed socket.

Manufacturerfiio.com
FH15 (2023)

Choose MMCX. MMCX.

Published reviewheadfonics.com
FH7s (2022)

Choose MMCX. MMCX.

Published reviewtechpowerup.com
FH9 (2022)

Choose MMCX. MMCX.

Manufacturerfiio.com
FD5 (2021)

Choose MMCX. MMCX.

Manufacturerfiio.com
FD7 (2021)

Choose MMCX. MMCX.

Manufacturerfiio.com
FH5s (2021)

Choose MMCX. MMCX.

Manufacturerfiio.com
FA9 (2020)

Choose MMCX. MMCX.

Manufacturerfiio.com
FH1s (2020)

Choose Standard 2-pin (0.78 mm). 2-pin 0.78 mm.

Manufacturerfiio.com
FH3 (2020)

Choose MMCX. MMCX.

Manufacturerfiio.com
FA7 (2019)

Choose MMCX. MMCX.

Manufacturerfiio.com
FH7 (2019)

Choose MMCX. MMCX.

Manufacturerfiio.com
FH5 (2018)

Choose MMCX. MMCX.

Manufacturerfiio.com

Ordering

How to order

  1. Pick a cable from the list below.
  2. Under Headphone connection, choose MMCX.
  3. Choose the player plug that matches the output you use most; see choosing the player plug.
  4. Not sure which socket your earphone has? Send us the model and a close photo of the socket before you order.

Before you order

Check your earphone

  • Look at the socket: MMCX is a round snap-on socket, 2-pin has two pin holes.

Cables

Cables you can order with this connector

Every cable below offers MMCX under Headphone connection.

Lune Series MKVIII Premium Upgrade Cable for Headphone | IEM

Headphone connection: MMCX

 From $149.00 USD Tiburon MKIII UP-OCC Cryo Copper Headphone/IEM Cable

Headphone connection: MMCX

 From $199.00 USD Arete Series MKV Premium Upgrade Cable for Headphone | IEM

Headphone connection: MMCX

 From $109.00 USD Thera MKIII UP-OCC Cryo Silver Headphone/IEM Cable

Headphone connection: MMCX

 From $399.00 USD Brevity Pro 5N CGOCC-A Copper Earphone Cable

Headphone connection: MMCX

 From $49.00 USD Ethos Ultra Coaxial Upgrade Cable for IEM | Headphone

Headphone connection: MMCX

 From $89.00 USD Capri Balanced Digital Earphone Cable with Hi-Res DAC

Headphone connection: MMCX

 From $49.00 USD Hakone MKIII UP-OCC Cryo Silver/Copper Headphone/IEM Cable

Headphone connection: MMCX

 From $299.00 USD Aoraki MKIII Gold Silver Tri-Hybrid Headphone/IEM Cable

Headphone connection: MMCX

 From $699.00 USD Nyx2 Wireless IEM Cable · Qualcomm QCC5181

Headphone connection: MMCX

 From $89.00 USD Epsilon MKIII Premium Upgrade Cable for Headphone | IEM

Headphone connection: MMCX

 From $129.00 USD Istana Graphene Coated Copper Hybrid Headphone/IEM Cable

Headphone connection: MMCX

 From $1,099.00 USD

Keep reading

More guides

Find a cable for my IEM

Search 400+ earphones by brand or model.

 IEM connectors explained

2-pin, MMCX, IPX, A2DC and FlexiPlug.

 Choosing the player plug

3.5 mm, 2.5 mm, 4.4 mm, XLR and USB-C.

 Sennheiser IE 200 / IE 300 / IE 600 / IE 900

Choose IE300/600/900. Recessed MMCX socket.

 Sennheiser IE 40 PRO / IE 400 PRO / IE 500 PRO / IE 80

Each has its own option, not standard MMCX.

 Sony IER-Z1R / IER-M9 / IER-M7 / XBA

IER-Z1R: choose Sony IER-Z1R. IER-M7: MMCX.

 Etymotic ER4SR / ER4XR / ER4P / ER2

ER4SR/XR: keyed MMCX. Older ER4P/B/S: own option.

 Shure SE846 / SE535 / SE215 / AONIC

Standard MMCX.

 64 Audio

Universals: Flat 2-pin. Aspire: IPX. Customs: IPX or Flat 2-pin, matching your socket.

 JH Audio

4-pin: JH w Bass Control. 7-pin: JH 7-pin.

 Westone MACH / Pro X

T2 socket: choose IPX. Older W and UM Pro: MMCX.

 Ultimate Ears (UE)

Current customs and UE 150–350: IPX. Older 2-pin and SL: UE/UM/QDC 2PIN Legacy.

 Campfire Audio

Most models: MMCX. Andromeda 10, Chimera: 2-pin.

 Audio-Technica

Choose A2DC. IM series: plug on request.

 AAW (Advanced AcousticWerkes)

Choose Standard 2-pin. Nebula One: fixed cable.

 Moondrop

Choose Standard 2-pin. Original CHU: fixed cable.

 qdc, KZ and CCA

qdc: UE/UM/QDC 2PIN Legacy. KZ, CCA (0.75 mm): not supported.

 Truthear, Kiwi Ears, Simgot and more

Most: Standard 2-pin. Some: MMCX.

 Empire Ears

Choose Standard 2-pin.

 Vision Ears

Choose Standard 2-pin.

 Noble, UM, FiR, Softears, Symphonium, Elysian

Most: Standard 2-pin. Elysian: FlexiPlug.

 JOMO Audio

Choose Standard 2-pin.

 Dunu

Most: MMCX. Some: 2-pin.

 final

Choose MMCX.

Sources

Sources

  1. fiio.com: FiiO FH9 MMCX.
  2. fiio.com: FiiO FD7 MMCX.
  3. fiio.com: FiiO FA9 Expanded MMCX.
  4. Null Audio configurator, Headphone connection Options offered on each cable. Snapshot 16 Oct 2026.

Prepared 17 Oct 2026. Not yet reviewed by Null Audio.

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