--- product_id: 37648909 title: "Southwire MSBMMT3G 3 Gang Multi Mount Device Box with Depth Adjustable; Heavy Duty 42lb; Gray" brand: "southwire" price: "G$8506" currency: GYD in_stock: true category: "Southwire" url: https://guyana.desertcart.com/products/37648909-southwire-msbmmt3g-3-gang-multi-mount-device-box-with-depth store_origin: GY region: Guyana --- # Adjustable depth for perfect fit ½" conduit knockouts for seamless wiring 42lb heavy-duty strength Southwire MSBMMT3G 3 Gang Multi Mount Device Box with Depth Adjustable; Heavy Duty 42lb; Gray **Brand:** southwire **Price:** G$8506 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate your install game with the ultimate multi-mount box—because your smart home deserves the best. ## Quick Answers - **What is this?** Southwire MSBMMT3G 3 Gang Multi Mount Device Box with Depth Adjustable; Heavy Duty 42lb; Gray by southwire - **How much does it cost?** G$8506 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [guyana.desertcart.com](https://guyana.desertcart.com/products/37648909-southwire-msbmmt3g-3-gang-multi-mount-device-box-with-depth) ## 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 - • **Cable Capacity Boost:** Removable interior blocks expand cubic inch space—more room, zero compromise. - • **Smart Voltage Separation:** Built-in low voltage dividers keep power and data lines safely apart for modern smart homes. - • **Versatile Mounting Mastery:** Fits horizontal & vertical installs with removable nail tabs for effortless metal stud mounting. - • **Durability Meets Compliance:** High-impact polycarbonate, UL Listed & RoHS compliant with heavy-duty screws for lasting reliability. - • **Streamlined Cable Management:** ½" knockouts compatible with blue tube & PVC conduit for clean, professional setups. ## Overview The Southwire MSBMMT3G is a 3-gang multi-mount electrical box designed for flexible horizontal or vertical installation. Featuring adjustable depth, removable interior blocks for increased cable capacity, and ½" conduit knockouts, it supports clean, professional wiring setups. Built with high-impact polycarbonate and UL Listed, it ensures durable, safe separation of mixed voltages, making it ideal for modern smart home and home theater applications. ## Description Southwire’s thoughtful design includes ½" knockouts for quick conduit connections and built-in wall dividers to safely separate mixed voltages. That means you can run power and data lines in the same box without worry. ## Features - Designed for both horizontal and vertical installations, this low voltage mounting box includes removable nail tabs for easy metal stud mounting and top blocks for secure vertical placement—perfect for flexible home theater or TV setups. - Removable interior mounting blocks allow for increased cubic inch capacity, giving you more room for cables and connections without compromising safety or performance. - Includes ½" knockouts compatible with blue tube or PVC conduit, streamlining your cable management and ensuring a clean, professional installation every time. - Low voltage wall dividers enable safe separation of mixed voltages within the same box—ideal for combining power and data lines in modern smart home applications. - Made from high-impact polycarbonate and backed by UL Listing and RoHS compliance, this box includes heavy-duty mounting screws for secure installation and long-lasting reliability. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00H8NV1WS | | Best Sellers Rank | #2,289 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Electrical Outlet Boxes | | Brand Name | Southwire | | Color | Gray | | Customer Reviews | 4.6 4.6 out of 5 stars (140) | | Finish Type | Painted | | Global Trade Identification Number | 00784297017728 | | Included Components | MSBMMT3G | | Installation Type | Nail-On | | Item Dimensions D x W x H | 3.5"D x 5.9"W x 3.82"H | | Item Type Name | 3-GANG MULTI-MOUNT ELECTRICAL BOX | | Item Weight | 0.2 kg | | Manufacturer | Southwire | | Material | Polycarbonate | | Model Number | MSBMMT3G | | Part Number | MSBMMT3G | | Specification Met | Ul | | Style | Multi-Mount | | UPC | 784297017728 | | Unit Count | 1 Count | ## Product Details - **Brand:** Southwire - **Color:** Gray - **Material:** Polycarbonate - **Product Dimensions:** 3.5"D x 5.9"W x 3.82"H - **Style:** Multi-Mount ## Images ![Southwire MSBMMT3G 3 Gang Multi Mount Device Box with Depth Adjustable; Heavy Duty 42lb; Gray - Image 1](https://m.media-amazon.com/images/I/61U1vyUQwPL.jpg) ![Southwire MSBMMT3G 3 Gang Multi Mount Device Box with Depth Adjustable; Heavy Duty 42lb; Gray - Image 2](https://m.media-amazon.com/images/I/71jfkaz+B-L.jpg) ## Available Options This product comes in different **Size, Style** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://guyana.desertcart.com/products/37648909-southwire-msbmmt3g-3-gang-multi-mount-device-box-with-depth](https://guyana.desertcart.com/products/37648909-southwire-msbmmt3g-3-gang-multi-mount-device-box-with-depth) --- *Product available on Desertcart Guyana* *Store origin: GY* *Last updated: 2026-08-10*