---
product_id: 388854403
title: "DSD TECH SH-RJ12A USB to RJ12 6P4C Serial Cable for APC PDU ATS(5.9FT/1.8M)"
brand: "dsd tech"
price: "111 zł"
currency: PLN
in_stock: true
reviews_count: 5
category: "Dsd Tech"
url: https://www.desertcart.pl/products/388854403-dsd-tech-sh-rj12a-usb-to-rj12-6p4c-serial-cable
store_origin: PL
region: Poland
---

# Plug & Play compatibility across Windows, Mac, Ubuntu 1.8M USB to RJ12 cable length Industrial-grade FTDI FT232RL chipset DSD TECH SH-RJ12A USB to RJ12 6P4C Serial Cable for APC PDU ATS(5.9FT/1.8M)

**Brand:** dsd tech
**Price:** 111 zł
**Availability:** ✅ In Stock

## Summary

> 🔗 Connect with Confidence — The Ultimate USB to RJ12 Serial Cable for Power Pros

## Quick Answers

- **What is this?** DSD TECH SH-RJ12A USB to RJ12 6P4C Serial Cable for APC PDU ATS(5.9FT/1.8M) by dsd tech
- **How much does it cost?** 111 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/388854403-dsd-tech-sh-rj12a-usb-to-rj12-6p4c-serial-cable)

## Best For

- dsd tech enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Convenience:** Instant device recognition with minimal setup—get connected and productive in seconds.
- • **Industrial-Grade Stability:** Powered by the trusted FTDI FT232RL chipset, ensuring robust and consistent serial communication.
- • **Trusted Support & Warranty:** Backed by 24 months warranty and responsive customer service to keep your operations smooth.
- • **Universal OS Compatibility:** Works flawlessly across Windows XP to 10, Mac OS X, and Ubuntu for maximum flexibility.
- • **Seamless APC PDU/ATS Management:** Effortlessly configure and debug your APC devices with a reliable USB to RJ12 connection.

## Overview

The DSD TECH SH-RJ12A is a 1.8-meter USB to RJ12 serial cable designed specifically for managing APC PDU and ATS devices. Featuring the industrial-grade FTDI FT232RL chipset, it guarantees stable and reliable communication across multiple operating systems including Windows, Mac, and Ubuntu. This plug-and-play cable supports a wide range of APC models, backed by a 24-month warranty and dedicated customer support, making it an essential tool for IT professionals and data center managers seeking seamless device configuration and debugging.

## Description

This USB to RJ12 Cable is to help those who want to use a USB connection to connect the Radio and PC. Specification: Model:SH-RJ12A Length: 1.8M/6FT Main chip: FTDI FT232RL Connectors: USB Male, RJ12 Powered by USB port, no external power adapter required. List of supported systems: 1,Windows XP,7,8,10 2,Ubuntu 11.10, kernel 3.0.0-19 or above 3,Mac OS X 10.3 to 10.8 (32 &64 bit) 4,Mac OS X 10.9 and above(64 bit) You can download the driver directly from FTDI's website Applicable Equipment: APC Automatic Transfer Switch: AP7721, AP7723, AP7730, AP7732, AP7752 APC Rack PDU: P78xx, AP79xx, AP86xx, AP88xx, AP89xx Metered-by-Outlet with Switching Rack PDU: AP8632, AP8641, AP8653, AP8659, AP8659EU3, AP8659NA3, AP8661, AP8681 Metered Rack PDU: AP7152, AP7155, AP7175,AP7800, AP7801, AP7802, AP7802J, AP7811, AP7820 Metered-by-Outlet Rack PDU: AP8441, AP8453,AP8459EU3, AP8459NA3, AP8459WW, AP8461, SPD10K Switched Rack PDU: AP7900, AP7901, AP7902, AP7902J, AP8930J, AP8931, AP8932, AP8930 Package Content: 1 * USB to RJ12 Cable 1 * User Manual Precautions: Although this data cable can transmit RS232 signals, it may not be compatible with your device. Because the line sequence of this data line is: NULL, Gnd, Tx, Rx, GND, NULL (please refer to the picture).Different devices have different requirements for compatible data lines. You can adjust it manually or contact us for customization. WARRANTY: We back this USB to RJ12 Console Cable with 24 months warranty.If you meet any question, Please contact us, we will fix your issue within 24 hours. Important Notes: This product uses FTDI FT232RL chip by default, because of the chip out of stock, some production batches use FTDI FT232RNL model chip . Please do not worry, FT232RNL is also the chip produced by FTDI, can completely replace FT232RL. If you still care about these please contact us.

Review: Das Kabel funktioniert Tadellos an meiner Liontron LX48-100 Speicherbatterie um auf das BMS zuzugreifen. Wurde auch am Computer sofort erkannt Plug and Play
Review: I bought this to reset the admin password and the networking on an APC 7932 PDU. The USB-to-RJ12 showed up as a COM port on my laptop. Although I did have to go and download/install the drivers for it myself, it worked like a charm. I'm very pleased with the results.

## Features

- DSD TECH: DSD TECH focuses on the development of communication connection devices such as USB/Serial/Wireless. We have served more than 100,000 customers in Europe, North America and Japan.
- FTDI FT232RL Chipset: Built-in industrial grade FTDI FT232RL chip, high stability, enough to handle a variety of complex situations.
- Manage your APC PDU/ATS: When your APC PDU or ATS needs to be debugged or configured, you can use this USB to RJ12 Serial Cable to communicate with it.
- Replacement for APC Part# 940-0144A. Suitable for the following APC PDU ATS models: AP77XX AP78XX AP79XX AP86XX AP88XX AP89XX.
- Customer Support: Offering permanent technical support and a 1-year product replacement service. All questions will be answered for you within 1 business day.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R2L22GW |
| Best Sellers Rank | #28,884 in Computers ( See Top 100 in Computers ) #35 in Serial Cables |
| Country of origin | China |
| Item model number | SH-RJ12A |
| Manufacturer | DSD TECH |
| Product Dimensions | 9.19 x 8.99 x 2.59 cm; 56 g |

## Product Details

- **Brand:** DSD TECH
- **Cable type:** USB
- **Compatible devices:** Radio
- **Connector type:** rj12a
- **Special features:** Data Transfer

## Images

![DSD TECH SH-RJ12A USB to RJ12 6P4C Serial Cable for APC PDU ATS(5.9FT/1.8M) - Image 1](https://m.media-amazon.com/images/I/71e2mVbSI+L.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the usb follow rs232 wiring protocol? i’m hoping this eliminates buying 2 cables: rj12 to 9 pin and a 9 pin to usb with ftdi cable.**
A: Tech answer: Not really. The driver interface of this chip does follow the RS232 Protocol however, the voltage read out is limited to +5V if your device uses true RS232 wiring then this device will not work.  True RS232 wiring has a reversed(voltage shift) voltage that ranges from -15v to +15v (3V min register). In short, unless your device only needs RXD/TXD/GRD within 0 to +5V don't expect it to work.

**Q: Will this cable allow me to connect a headset with mic (Plantronics CO52) to my computer to?**
A: no, it is a usb to  RS232 serial adapter with rj12 interface. It only applies to data communication. Not used for audio transmission.

**Q: the title is labelled as 6p4c is it not 6p6c rj-12?**
A: We confirm that this is the RJ12 interface cable. The RJ12 interface corresponds to a 6-core cable. But we only used 4 touch points of RJ12 interface . So that it can be compatible with 6P4C

**Q: Does this cable create a virtual COM port?**
A: Yes, Built-in FTDI FT232 chip. When you install the driver, a virtual serial COM port is created.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***F on 26 June 2025*

Das Kabel funktioniert Tadellos an meiner Liontron LX48-100 Speicherbatterie um auf das BMS zuzugreifen. Wurde auch am Computer sofort erkannt Plug and Play

### ⭐⭐⭐⭐⭐ Review
*by M***X on 24 July 2021*

I bought this to reset the admin password and the networking on an APC 7932 PDU. The USB-to-RJ12 showed up as a COM port on my laptop. Although I did have to go and download/install the drivers for it myself, it worked like a charm. I'm very pleased with the results.

### ⭐ Review
*by S***！ on 17 March 2023*

AZ-GTi とASIPRO-PLUS接続用に購入しましたが認識してくれませんでした。

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-13*