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Compatibility guide

Cables for Moondrop

Moondrop’s detachable IEMs, including the Blessing 2 and 3, Aria and Aria 2, KATO, Variations, Starfield II, Stellaris, May and CHU II, use 0.78 mm 2-pin sockets. Choose Standard 2-pin (0.78 mm): it fits both recessed and flat sockets.

Quick facts

Connection

Blessing 3

0.78 mm 2-pin, recessed socket

Manufacturermoondroplab.com: Moondrop Blessing 3
KATO

0.78 mm 2-pin, sunken socket

Manufacturermoondroplab.com: Moondrop KATO
Aria 2

0.78 mm 2-pin

Manufacturermoondroplab.com: Moondrop Aria 2
CHU (original)

Fixed cable

Published reviewheadphonesaddict.com: Moondrop CHU
Option to choose

Standard 2-pin (0.78 mm). It fits recessed and flat 0.78 mm sockets.

Null AudioNull Audio

Models

Which option for each model

Each row shows the option to choose.

Aria 2 (2024)

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

Manufacturermoondroplab.com
MAY (2024)

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

Manufacturermoondroplab.com
Starfield II (2024)

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

Manufacturermoondroplab.com
Blessing 3 (2023)

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

Manufacturermoondroplab.com
CHU II (2023)

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

Manufacturermoondroplab.com
Stellaris (2023)

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

Manufacturermoondroplab.com
CHU (2022)

Cable is not detachable. Fixed cable.

Published reviewheadphonesaddict.com
Blessing 2: Dusk (2021)

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

Published reviewchifiwire.com
KATO (2021)

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

Manufacturermoondroplab.com
Variations (2021)

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

Published reviewmoonstarreviews.net
Aria (2020)

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

Manufacturermoondroplab.com
Blessing 2 (2020)

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

Manufacturermoondroplab.com
KXXS (2019)

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

Retailer listingdrop.com

Ordering

How to order

  1. Pick a cable from the list below.
  2. Under Headphone connection, choose Standard 2-pin (0.78 mm).
  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

  • Match the marked side of the plug to the marked side of the socket. 2-pin polarity matters.
  • Recessed sockets (Blessing 3, KATO, Variations) take our standard 2-pin plug; you don’t need a special recessed plug.

Cables

Cables you can order with this connector

Every cable below offers standard 2-pin under Headphone connection.

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.

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.

FiiO

Choose MMCX.

final

Choose MMCX.

Sources

Sources

  1. moondroplab.com: Moondrop Blessing 3 0.78 mm 2-pin.
  2. moondroplab.com: Moondrop KATO 0.78 mm 2-pin, sunken socket.
  3. moondroplab.com: Moondrop Aria 2 0.78 mm 2-pin.
  4. headphonesaddict.com: Moondrop CHU Fixed cable.
  5. Null Audio configurator, Headphone connection Options offered on each cable. Snapshot 16 Oct 2026.

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