---
product_id: 17333431
title: ""
brand: "southwire"
price: "Bs.629"
currency: BOB
in_stock: null
reviews_count: 5
url: https://www.desertcart.bo/products/17333431-
store_origin: BO
region: Bolivia
---

# Depth adjustable for perfect fit Largest 91.5 cu in volume in device boxes 42 lb heavy-duty mounting screws 

**Brand:** southwire
**Price:** Bs.629
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Elevate your electrical game with Southwire’s powerhouse multi-mount box!

## Quick Answers

- **What is this?**  by southwire
- **How much does it cost?** Bs.629 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/17333431-)

## Best For

- southwire enthusiasts

## Why This Product

- Trusted southwire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety Meets Innovation:** Built-in wall dividers separate mixed voltages, running power and data lines worry-free.
- • **Custom Fit, No Compromise:** Depth adjustable design adapts seamlessly to your unique wall setup.
- • **Space to Power Your Vision:** Generous 91.5 cubic inches volume accommodates complex wiring needs.
- • **Built to Last, Mounted to Impress:** Heavy-duty 42 lb screws ensure rock-solid installation every time.
- • **Versatile Mounting, Vertical or Horizontal:** Multi-mount style offers flexible installation options for any project.

## Overview

The Southwire MSBMMT5G is a 5-gang, depth-adjustable multi-mount device box featuring heavy-duty 42 lb mounting screws and the largest volume capacity (91.5 cubic inches) in its class. Designed for versatile vertical or horizontal installation, it includes built-in wall dividers for safe separation of mixed voltages, making it ideal for modern power and data wiring needs. UL listed and finished with durable powder coating, this gray device box combines robust performance with thoughtful design.

## Description

Southwire MSBMMT5G 5 Gang Multi Mount Device Box with Depth Adjustable; Heavy Duty 42lb ; Gray

## Features

- Depth Adjustable
- Heavy duty 42 lb mounting screws supplied
- Largest volume offered in device boxes
- Vertical and horizontal mounting
- UL ListedMadison Electric is now part of the Southwire family Product packaging may vary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Brand | Southwire |
| Color | Gray |
| Style | Multi-Mount |
| Product Dimensions | 3.5"D x 9.52"W x 3.82"H |
| Finish Type | Powder Coated |
| Installation Type | Screw-In |
| Capacity | 91.5 Cubic Inches |
| Manufacturer | Southwire |
| UPC | 784297017742 |
| Global Trade Identification Number | 00784297017742 |
| Part Number | MSBMMT5G |
| Item Weight | 13.4 ounces |
| Item model number | MSBMMT5G |
| Is Discontinued By Manufacturer | No |
| Size | 5 Gang |
| Finish | Powder Coated |
| Pattern | Device Box |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Included Components | MSBMMT5G |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Plastic
- **Brand:** Southwire
- **Color:** Gray
- **Style:** Multi-Mount
- **Product Dimensions:** 3.5"D x 9.52"W x 3.82"H

## Images

![ - Image 1](https://m.media-amazon.com/images/I/61s0jDo25UL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ great mounting box!
*by B***H on August 26, 2025*

perfect for what i needed. the functionality of this design allows you to install the box without cutting a hole in the sheetrock bigger than the box itself. the 45 degree angle mounting screws provided with this are very sharp, and kept the box perfectly in place while mounting it. once mounted, it is strong enough to hang off of it. has several pop open wire entry windows in different locations to customize the installation. nice sturdy box!

### ⭐⭐⭐⭐⭐ Good item!
*by J***N on September 6, 2025*

Southwire Electrical Box for Ceiling Fan, Light Fixture, 50lb Ceiling Fan and 75lb Light Fixture Support, Depth Adjustable, Gray, MSBFANWorks perfectly for meNo extra work requiredI install a ceiling fan on my laundry room effortlesslyI do recommend it

### ⭐⭐⭐⭐⭐ These are the best for old work.
*by W***R on November 22, 2023*

I have been a commercial electrician for many years doing mostly large commercial jobs (Hotels, Cell store conversions from grocery stores, etc.). I am now an estimator but do a lot of electrical for family, church, and inspect commercial jobs for the construction company that I work for.Southwire was picked up by Lowes several years ago and they had some problems with defective products that were recalled (mostly digital meters/testers). Well Lowes got rid of them and went with Klein and Home Depot greatly reduced their Klein and now have Milwaukee. That being said, you wonder how such a great box came from Southwire! Well, Southwire bought Madision Electrical and now if you look up that 2 gang box under Madison....it looks EXACTLY the same...HMMMMM? This box is about $2 cheaper than the Madison brand. What makes this box so good is:1) Quality - this is a very sturdy and thick PVC box.2) Being sturdier, the device 6/32 mounting holes are much more durable (why you should NEVER use a fiberglass box!).3) The two angled screws are designed to end up a bit recessed so that a short won't make contact with one of those screws. That would be bad as the current would not be going to ground to trip the breaker, but through a screw which turns into a cal rod inside your stud - yes, that would be VERY bad!4) Those screws hold that box very tightly against the stud and thereby makes the box stable when plugging or unplugging a plug from the outlets.My daughter's house needed some upgrades and these boxes make the job easy. Easy to take a 1 gang box and replace it with a 2 gang box like this without having to cut the walls open other and enlarging for the box size.The NM clamps will need to be pre-opened with a fairly large flat-blade screwdriver - What you had on the other side!Don't pay any attention to the 10, 12 and 14 embossing on the back...each one of those openings/clamps are the exact same size! Not sure what they were thinking there.Update:I find that before installing, grab the box carefully without your hand being near the soon to be protruding screws and use a drill driver to spin the screws in reverse while pushing will pilot the holes and when you actually go to screw it in it will not want to wander further into the wall since you will have virtually no resistance before the screws tips bite into the wall stud.

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-03-18*