Top 5 best USB audio interface of 2021


The top 5  USB audio interface in 2021 we have more information hrs of testing.

USB audio interface is a necessary thing for your studio setup. It provides to connect all your instrument and control it. It enhances the quality of your audio. While your recording session and even throwing a stage performance. 

These are some top end in this product and bought it for you. All have some unique benefits so choose wisely. 

Input and output:  

When you are choosing the best audio interface you must see no. of input and output because if you are a solo performer you can generate sound by your own computer but if your recording is live at that time it is more useful for you. 

The same interface has MIDI I/O on them you can save in a cloud but you have to buy them separately.  MIDI is not a fundamental necessity. 


Audio interface fully running by USB and thunderBolt, you must get sure which one proper for cooperative with the connections on your computer. There N no. of  USB C connection is available in our market. 

Several interfaces are class-compliant, which means you can just plug them in and begin using them throughout away.

1. Audient iD4 MKII:


  • Connectivity: USB 2 
  • Audio resolution: 24-bit/96kHz
  • Analogue inputs: 2 
  • Analogue outputs: 2
  • Digital connectivity: None
  • MIDI I/O: No

It consists of two input and two output through you can connect your mic and musical instruments like keyboard, guitar, etc and there’s an output for your speakers and headphones. It can also be connected with an iPad. The size of the interface is comparatively small but it provides high-quality audio, it is from the UK company meant for its high-quality recording. It is powered using a USB. the audio has a clear quality in both recording and in output.

Audient gives all the sufficient things in an interface at an affordable price without compromising the quality. It has a premium-level audio interface that is combat and comes at a reasonable price. So that it’s affordable for everyone and which makes it more best.


2. SSL 2+ audio interface: 

  • Connectivity: USB-C
  • Audio resolution: 24-bit/192kHz 
  • Analogue inputs: 2 
  • Analogue outputs: 4 
  • Digital connectivity: None 
  • MIDI I/O: Ye

 It is a solid interface with some extra features. It is also an affordable interface from the SSL brand. This comes with two outputs with independent headphones, it also comes with a 4k button which enhances the output audio and these extra features make the product more professional comes with two combi mic/line inputs with Hi-Z options for switching between guitar and bass signals. A +48v option makes the connection between both condenser and dynamic mics.

It has a super signal path for this price segment, the built quality of the product is so solid that it won’t get broken easily. it has a good quality of monitoring and recording and with some new cool features, it is mostly recommended.


3. Focusrite’s Scarlett  4i4 3rd gen:


  • Connectivity: USB C
  • Audio resolution: 24-bit/192kHz
  • Analogue inputs: 4
  • Analogue outputs: 4
  • Digital connectivity: none
  • MIDI I/O: yes         

Focusrite’s Scarlett USB interfaces have traditionally connected superior sonics and audio compliance at reasonable price points and the third generation units give us the best work.   

Focusrite’s Scarlett 4i4 3rd gen is physically and technical it’s upgraded and it is more feature with enhanced preamps now up to 56dB gain.it has 4 inputs and 4 outputs it has 2 microphone preamps directly records up to two microphones which interface you choose. 4i4 record at up to a 192kHz sample rate at 24-bit depth include built-in headphone amplifier with adjustable gain and provide outputs for monitoring with the powered speakers.

Focusrite’s Scarlett 4i4 3rd gen has the same advantages the 4i4 is if you using 4i4 is you will be using MIDI controllers that use 5 pin DIN cable for connectivity. 4i4 offers MIDI input and output. 4i4 has control applications so there are more settings in software it has added advantages.


 4. Universal Audio Apollo Twin MkII: 

Twin Mkii Duo

  • Connectivity: Thunderbolt 
  •  Audio resolution: 24-bit/192kHz 
  • Analogue inputs: 2 
  • Analogue outputs: 6 
  • Digital connectivity: Optical Toslink 
  • MIDI I/O: No

It has two line outputs, a Front-panel Hi-Z instrument for input and a headphone as output. With a Built-in talkback mic which provides an extra feature for this interface. There comes two digitally controlled analogs for monitor audio outputs from the interface. Extending up to eight channels for digital input. It has a huge clearance in the output audio. It also has real-time tracking and monitoring. 

It has cool hardware and software which makes audio recording and throwing output audio will be incredible and which makes a good choice. It has one disadvantage that is the interface can be powered by a thunderbolt.  


5. Native Instruments Komplete Audio 2

Audio 2

  • Connectivity: USB 2
  • Audio resolution: 24-bit/192kHz
  • Analogue inputs: 2 
  • Analogue inputs: 2
  • Digital connectivity: none
  • MIDI I/O:no        

Komplete Audio 2 has two inputs and two output designs with 2 identical mics, line, instrument inputs.  USB indication light and 48 volts switch the input channel meanwhile,  meantime is involved globally via a single switch. It has added advantages the front board includes a hardware monitoring stability knob (Input/Host) and a headphone output with autonomous control.  

The main advantage in komplete Audio Super covenant, Suitable five-part input metering.  Komplete Audio 2  have one pair of small USB 2 bus-powered audio interface. The audio resolution has 192kHz and small disadvantages it’s not having a MIDI feature. Its software has more features and more excellent value.

 Komplete Audio 2 is the best performance because is as slick as looks, basic features and, does its job admirably.   


We hope that the above information is useful for you and now you have some idea which audio interface for you suitable for you.

Best USB audio interface