# MillSO MUSBNL-5U USB Audio Interface

Interface: MillSO MUSBNL-5U is a compact USB audio adapter with separate 3.5 mm microphone and headphone ports for recording and monitoring. The listing describes plug-and-play use and applications such as guitar or keyboard recording, vinyl digitization, voice chat, and livestreaming. Several of those connections require cables that are not included.

- [Original product page](https://best-deals.pro/product/millso-musbnl-5u-usb-audio-interface)
- [View offer](https://best-deals.pro/visit/millso-musbnl-5u-usb-audio-interface)
- Market: US
- Language: en-US
- Currency: USD
- Brand: MillSO
- Model: MUSBNL-5U
- Price: 6.99 USD
- Previous price: 13.99 USD
- Discount: 50%
- Price checked: 2026-11-12T11:24:25.780Z
- Rating: 4.5 / 5
- Reviews: 24

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Separate 3.5 mm microphone and headphone ports are described for recording and listening at the same time.
- The listing identifies the yellow jack for recording and the green jack for monitoring.
- Claims driver-free, plug-and-play setup for supported computers.
- The manufacturer describes recording from instruments and vinyl, plus voice chat, calls and livestreaming.

## Pros

- Separate recording and headphone-monitoring jacks provide a straightforward way to connect a microphone and headphones to a computer.
- USB connection and claimed plug-and-play operation may suit a simple portable recording setup without a larger interface.
- The listing names Linux, Mac and Windows support.

## Specifications

### Identity
- Brand: MillSO
- Model: MUSBNL-5U
### Connectivity and audio
- Hardware interface: USB
- Audio output mode: Surround
- Surround sound channel configuration: 5 1
- Maximum sample rate: 48 KHz
- Ports: 3.5mm headphone and 3.5mm microphone jack
### Compatibility
- Platforms: Linux, Mac, Windows
- Compatible devices: dual-plug headset, headphone, earphone, 3-pole TRS microphone, laptop, computer, PC, desktop, smartphone, electronic keyboard, electric guitar, vinyl records, MP3
### Dimensions and installation
- Weight listed: 8 g

## Before you buy

- Instrument recording, vinyl transfer and smartphone playback require additional cables according to the listing. Those cables are not included. Confirm the required plug type and compatibility with your source device before buying.
- The listed 5.1 channel configuration and Surround output mode are not explained alongside the simple microphone and headphone ports. Treat surround capability and channel behavior as unconfirmed, and check the selected listing if they matter.
- The manufacturer describes the housing as both metal and ABS in different listing details. The material is therefore inconsistent. The listed 48 KHz maximum sample rate is a manufacturer claim, not an independent measurement.

## A good fit for

- Computer users seeking separate 3.5 mm microphone input and headphone monitoring for voice chat, calls or basic recording.
- Musicians wanting a small USB connection for instrument recording, provided they have the required 6.35 mm-to-3.5 mm cable.
- People digitizing vinyl or sending smartphone audio to a computer who already have the required compatible cables.

## Less suited to

- Buyers seeking a complete recording kit with instrument or source cables included.
- Buyers who need confirmed professional recording performance, specific surround behavior or a clearly documented multichannel setup.

## Customer feedback

Aggregate ratings lean positive, with most ratings in the five-star category, but a smaller one-star share means experiences are not uniformly favorable. Ratings alone do not identify specific strengths or causes of dissatisfaction. For basic computer audio connections, the separate microphone and headphone ports are the clearest stated use case, while cable requirements and unclear surround details may affect whether it fits a particular setup.

## Frequently asked questions

### Can I monitor audio while recording?
The listing describes separate microphone and headphone ports and says you can hear audio in real time through the headphone jack. Actual behavior may depend on the connected devices and software.
### Are the cables for guitar or vinyl recording included?
No. The listing says guitar recording needs a 6.35 mm male-to-3.5 mm cable and vinyl transfer needs a 3.5 mm male-to-male cable, and identifies both as not included.
### Which computers are listed as compatible?
The listed platforms are Linux, Mac and Windows. The listing also names laptops and computers among compatible devices.
### Does it provide confirmed 5.1 surround sound?
The details list Surround output and a channel configuration of 5 1, but the listing does not explain how this applies to the adapter's microphone and headphone connections. Treat the surround claim as unconfirmed.

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## Add-ons

- [MillSO Headphone Mic Splitter 3.5mm Headset Adapter \(Microphone + Audio\) \| Braided 2 TRS Female to TRRS Male CTIA Stereo Y Jack for Dual-Plug Game Headset to Xbox, PS4, Phone, Laptop, PC - 8 inch](https://best-deals.pro/visit/millso-musbnl-5u-usb-audio-interface)

## Images

![MillSO MUSBNL-5U USB Audio Interface — 1](https://best-deals.pro/i/hAMm0aCIZcJrxKwiyVmzWHWahLhJPhMIxYKfyZiBzp524aB1uqFqlTm3Eh0aAmFZHRXtlp51hxtos4w2XicTCtPhlJWsfNfRrN5G6Q79i4am6vaxradIl2uB.jpg)

![MillSO MUSBNL-5U USB Audio Interface — 2](https://best-deals.pro/i/Q9rktLM7ve_1DthlZN70AQ7jYvS5yKEOW6bc60nt8dvfRMNqWyIWWPbYFuRt7nkKZQOSqxTT_HgoPXHYePZaHPaQVFODD031Fovbe-IoQaywm0fi-HNDrALK.jpg)

![MillSO MUSBNL-5U USB Audio Interface — 3](https://best-deals.pro/i/ECsBknXvifJJ43S1Y2M5kKIhJ_gM_V1T28IIzhR3VktOQNGLX_dPnobweTypRM75BfJsvsLuS41WqT2VVpsHNtpIXN8Q6n2ahvhsepqgaPfj4aR8mpewSsd8.jpg)

![MillSO MUSBNL-5U USB Audio Interface — 4](https://best-deals.pro/i/xJCR_5bdBLncarrvSkZTttis5KuVjjTg_Y7xsuu-UJRSmRltdm470G_jQrGIHm6WwiiXfVsL0IouVVWDnOrPY6VaUI4tIG4pmE-dtTKh1NyPA44Gsu9CuCVj.jpg)

![MillSO MUSBNL-5U USB Audio Interface — 5](https://best-deals.pro/i/deOUvwuVgc0cBVU-DrjTJUYCqtZXNoJv2w0khRxdxj5NTr50ezfp4Vus4uPKNv6YKoQ5-PpgXivdkW7YpCtXIlxVcVpqDJAAwEt9sf8IR9gN9LZwNoxMkzLs.jpg)

![MillSO MUSBNL-5U USB Audio Interface — 6](https://best-deals.pro/i/Um1SnOMnel4FogAheIJZ3M1kQ0RjLzvgXnOigKVHR36oQ3upA-TH4AajiN1-mQHRNTImBvQZ5z38DzcecSPMzLqBV2hiGFUH4ufx16o9tEOVaTWN-05rKYRB.jpg)

![MillSO MUSBNL-5U USB Audio Interface — 7](https://best-deals.pro/i/Ia36XvW1fToMON4JKVddIG_0qBvu8lpDRRasInBJV7tC5MqMFFNgJDDs1dyJy3jJBWXwBkesSZJUL5WCvAPGmEkiQLECWgEcwfux3k_MuxXb2eUZDyjKEIm-.jpg)