---
product_id: 35892881
title: "Southwire M400TP Professional Data Cable Mapper"
brand: "southwire"
price: "$110.16"
currency: USD
in_stock: true
reviews_count: 13
category: "Southwire"
url: https://www.desertcart.us/products/35892881-southwire-m400tp-professional-data-cable-mapper
store_origin: US
region: United States of America
---

# Backlit LCD for clear readings Rugged double-molded housing Port cover guards RJ45 from dust Southwire M400TP Professional Data Cable Mapper

**Brand:** southwire
**Price:** $110.16
**Availability:** ✅ In Stock

## Summary

> 🕵️‍♂️ Map your network like a pro — don’t let faulty cables slow your hustle!

## Quick Answers

- **What is this?** Southwire M400TP Professional Data Cable Mapper by southwire
- **How much does it cost?** $110.16 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/35892881-southwire-m400tp-professional-data-cable-mapper)

## 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

- • **Dust & Debris Defense:** Protective port cover keeps your RJ45 connection pristine and reliable.
- • **Crystal-Clear Diagnostics:** Backlit LCD display ensures you never miss a detail, even in low light.
- • **Plug & Play Compatibility:** Works seamlessly with routers, switches, and computers for instant network troubleshooting.
- • **Built to Brave the Jobsite:** Rugged double-molded housing with snap-in remote stands up to tough environments.
- • **Comprehensive Cable Testing:** Detects wiring faults including opens, shorts, reversals, miswires, split pairs, and shielded cables.

## Overview

The Southwire M400TP Professional Data Cable Mapper is a compact, durable tool designed for precise Ethernet cable testing. Featuring a backlit LCD for easy reading, a protective port cover, and rugged housing, it identifies wiring issues such as opens, shorts, and miswires across Cat 8 cables. Ideal for professionals seeking reliable, on-the-go network diagnostics.

## Description

Nearly one in two new homes built in the United States contains our wire, and we produce half of the cable used to transmit and distribute electricity throughout the nation. More than half of the world’s refined copper passes through one of our SCR systems, our tools & equipment business continues to grow, and our wire plays a key role in the manufacturing of other products, including automotive wiring harnesses and electrical motors. Southwire is a family-owned company operating in a globally competitive industry. As owners, we are proud of the company’s legacy and good standing in the community. Southwire’s success is rooted in hard work, social responsibility and innovation, and we believe that sustaining these core values is vital to the company’s future.

Review: Test the cables before running them - Works great for testing connection. Simple to use
Review: Exelente - Exelente

## Features

- Easy-to-read LCD display with backlight
- Port cover protects RJ45 port from dust and debris
- Rugged double-molded housing with snap-in remote
- Identifies correct wiring; opens; shorts; reversals; miswired; split pairs; and Shielded cables

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B019QXNI5K |
| Batteries | 2 AAA batteries required. (included) |
| Best Sellers Rank | #139,199 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #303 in Network & Cable Testers |
| Brand | Southwire |
| Cable Type | Ethernet |
| Color | Multi |
| Compatible Devices | Router, Switch, Computer |
| Connector Gender | Male-to-Male |
| Connector Type | RJ45 |
| Customer Package Type | Standard Packaging |
| Date First Available | December 23, 2015 |
| Department | Unisex-Adult |
| Ethernet cable category | Cat 8 |
| Global Trade Identification Number | 00032886935220 |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.5 ounces |
| Item model number | M400TP |
| Manufacturer | Southwire Company |
| Model Name | M400TP |
| Number of Items | 1 |
| Number of Pins | 8 |
| Outer Material | Other |
| Product Dimensions | 1 x 1 x 1 inches |
| Recommended Uses For Product | data cable testing and troubleshooting |
| Shape | Rectangular |
| Special Feature | Braided |
| UPC | 032886935220 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Southwire
- **Cable Type:** Ethernet
- **Compatible Devices:** Router, Switch, Computer
- **Connector Type:** RJ45
- **Special Feature:** Braided

## Images

![Southwire M400TP Professional Data Cable Mapper - Image 1](https://m.media-amazon.com/images/I/71Sd5cKbMBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Test the cables before running them
*by B***. on November 24, 2025*

Works great for testing connection. Simple to use

### ⭐⭐⭐⭐⭐ Exelente
*by L***M on October 27, 2025*

Exelente

### ⭐⭐⭐⭐⭐ Testing simplicity, like a Mod-Tap tester, using 2 AAA batteries
*by C***R on August 28, 2020*

The Southwire M400TP has a simple design with one button press and removable remote that stores in the unit, similar to some toning wands. It identifies opens, shorts, splits, miswires (reversed and crossed), short to shield, properly wired cross-over cables, and a voltage warning...a nice add. There is also a toner feature that allows tone on individual conductors, individual pairs, and on all wires simultaniously. Note: a toning wand is NOT included. Excellent instructions are provided. Documents reflect a 2-yr warranty. The brown case has a slightly rubber-like feel and easily fits in the palm of the hand and a tool bag slot. The cable tester's top RJ-45 jack has a dust/rain cap to prevent unwanted objects from entering that area. No expensive button cell batteries needed like some other testers. It ships with two AAA batteries. The screen also has backlighting for those times when you're testing from dark closets or beneath desks. A recommendation for the Southwire team --on a future redesign, possibly recess the mode button so it cannot be accidentally pressed while in the bag, and maybe a small microfiber pouch to cover the plastic screen while in your job bag. Overall, a really nice compact continuity tester with slick features. Don't change other things with this design, its close to perfect.

## Frequently Bought Together

- Southwire M400TP Professional Data Cable Mapper
- Klein Tools VDV226-110 Ratcheting Modular Data Cable Crimper / Wire Stripper / Wire Cutter for RJ11/RJ12 Standard, RJ45 Pass-Thru Connectors
- Cable Matters 100-Pack Cat 6 Pass Through RJ45 Connectors (Cat 6 Ends / Cat6 Connector / RJ45 Modular Plugs/Ethernet Plugs/Network Connector) for Solid or Stranded UTP Ethernet Cable

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-08*