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MXL AC-404-Z USB Boundary Microphone with Installation Kit for Zoom Rooms

BH #MXAC404Z • MFR #AC-404-Z
38 reviews
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MXL AC-404-Z USB Boundary Microphone with Installation Kit for Zoom Rooms
Key Features
  • For Web Conferencing in Zoom Rooms
  • Blue/Red Indicator
  • 3-Capsule Boundary Design
  • 180° of Coverage
The MXL AC-404-Z is a USB boundary microphone and installation kit designed to deliver broad sound pickup for groups of people in zoom rooms, conferences, meetings, and podcasts. It comes with adhesive foam mounting pads to install the mic on a wall or desk as well as straight and right-angled USB cables for easy plug-and-play connectivity with Mac and Windows computers.
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MXL AC-404 Overview

The MXL AC-404-Z is a USB boundary microphone and installation kit designed to deliver broad sound pickup for groups of people in zoom rooms, conferences, meetings, and podcasts. It comes with adhesive foam mounting pads to install the mic on a wall or desk as well as straight and right-angled USB cables for easy plug-and-play connectivity with Mac and Windows computers.

The AC-404-Z three-capsule boundary design yields 180° of coverage and a 25' maximum pickup range. Internal A/D conversion takes place at up to 16-bit/48 kHz resolution and negates the need for an external converter.

Plug your headphones into the 3.5mm headphone output for effortless monitoring. Power the sturdy metal-bodied mic via a USB connection with either of the supplied USB cables to your computer.

Ideal for zoom rooms, huddle rooms, conferences, and meetings
3-capsule design yields wide polar pattern with 180° of coverage and a maximum range of 25'
Easy USB connectivity and no driver installation required for use with Mac and Windows
Rugged low-profile metal body
3.5mm headphone output allows simple monitoring
Powered via USB
Compatible with USB 1.1 and USB 2.0
Includes two adhesive foam pads and two 3.3' USB cables—one straight-to-right-angle cable and one straight-to-straight cable
UPC: 801813190373

MXL AC-404 Specs

Key Specs
Microphone Type
Boundary
Polar Pattern
Hemispherical/Half-Omnidirectional
Element Type
3x Condenser
Analog Output
No
USB/Digital Output
1x Mini-USB
Power Sources
USB Power
Microphone
Microphone Type
Boundary
Polar Pattern
Hemispherical/Half-Omnidirectional
Element Type
3x Condenser
Sound Field
Mono
Controls
None
Pad
No
Connectivity
Analog Output Connector
No
USB/Digital Output
1x Mini-USB
Cable Length
3.28' / 1 m
Wireless
No
Digital Audio
A/D Conversion
16-Bit
Sample Rate
44.1 kHz
48 kHz
Digital Signal Processing & FX
No
OS Compatibility
Windows
macOS
Mobile App Compatible
No
Power
Power Sources
USB Power
Operating Voltage
Not Specified by Manufacturer
Physical
Mounting Thread Size
Included Mount Has No Threading
Dimensions
ø: 2.95 x L: 4.29" / ø: 75 x L: 109 mm
Weight
1 lb / 453.59 g
Packaging Info
Package Weight
1.15 lb
Box Dimensions (LxWxH)
9 x 7 x 3"

MXL AC-404 Reviews

Easy to use and functions as advertised

By John
Rated 4 out of 5
Date: 2025-12-23

Product is packaged well and seemingly of good quality. We utilized this for our conference room, and it functioned well for our recent in-person board meeting. It was easily recognizable as a microphone option in Zoom and didn't require any addtional program such as Zoom Rooms. Downside is it's a USB-A which required an adapter for my boss's newer MacBook air. Although that's a challenge for many new laptops that only come with a couple USB-C ports at best.

Only one can be used

By Ankur
Rated 2 out of 5
Date: 2021-01-10

Was not happy that only one can be used, can not merge together in a room.

See any errors on this page?

question

Can I use the headphone output to input to a camera?
Asked by: Thomas A.
You can take audio out from the headphone output, but it is line level. Also, this mic must be connected to a computer for power and to control the volume level to the headphone out.
Answered by: Andrea O.
Date published: 2018-08-27

question

Can I power the mic thru the USB port with a portable battery pack?
Asked by: Thomas A.
This mic is designed to send audio via USB connection, as well as power back to the mic. Theoretically, since it is bus powered, you could use an external battery to power the mic through the USB, but you would not have control over the headphone audio line level output. This is all done on the computer.
Answered by: Andrea O.
Date published: 2018-08-28

I am interested in microphones like this one, but ...

I am interested in microphones like this one, but I am interested in chaining up to 4 of them together. Can you recommend an alternative product?
Asked by: J
I suggest looking into software to submix. We use a platform called voicemeeter. The other option would be using a USB audio interface with 4 preamps and connect the MXL FR401M. The 401M is essentially a XLR version of the 404. From there you can connect that interface to whatever platform you are using.
Answered by: Trevor Fedele
Date published: 2021-10-11

What is the difference between MXL AC-404 and the ...

What is the difference between MXL AC-404 and the MXL AC-404Z?
Asked by: Wesley
The mics themselves are identical. The Z is meant to be part of a Zoom conferencing system. The Z ships with mounting tape, a right angle USB cable and also sports a blue LED to match the Zoom color. The non Z does not sport an LED light. If you have a Zoom system, consider the Z version, otherwise the non Z is fine.
Answered by: Marty
Date published: 2021-02-03

Can I daisy chain 2 or 3 of these together?

Can I daisy chain 2 or 3 of these together?
Asked by: Andy
No. These are not designed to daisy chain.
Answered by: Daniel
Date published: 2020-10-15

question

Does this microphone have Automatic Gain Control?
Asked by: Anonymous
This microphone does not offer an AGC. Gain levels are adjusted manually.
Answered by: Mark S.
Date published: 2018-08-27

Can this be used with an iPad?

Can this be used with an iPad?
Asked by: McKinney ISD
Yes! The AC-404 works well with iPads. In order to connect to the actual lighting connector you will need a lightning to USB A adapter.
Answered by: Trevor Fedele
Date published: 2021-10-11

question

Is it the same item as it is describe in your site?Do you ship this item to a FPO, AP address?Thanks!
Asked by: Anonymous
The product we ship is the same product as described above. We will be happy to ship this microphone to an FPO, AP address for you.
Answered by: Mark S.
Date published: 2018-08-27
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