---
title: AJAX 12V DC PSU Power Converter for the Hub 2/Hub 2 Plus/ReX 2
date: 2025-09-25T11:37:57Z
modified: 2026-05-15T10:02:05Z
permalink: "https://tech.co.za/product/ajax-12v-dc-psu-power-converter-for-the-hub-2-hub-2-plus-rex-2/"
type: product
status: publish
excerpt: For AJAX-HUB-2-4G-B/AJAX-HUB-2-4G-W/AJAX-HUB-2-PLUS-B/AJAX-HUB-2-PLUS-W/AJAX-REX-2-INDR
wpid: 552368
product_brand:
  - AJAX
product_type:
  - simple
product_visibility:
  - featured
product_cat:
  - Accessories
featured_image: "https://tech.co.za/wp-content/uploads/2025/09/14222.jpg"
---

The AJAX 12V PSU is a low-voltage power supply module designed for use with AJAX Hub 2, Hub 2 Plus, and ReX 2 control panels. It replaces the standard 110/230 V power supply, allowing the system to operate from a 12 V DC source. This makes it suitable for sites without access to the main electricity grid, including construction sites, vacant properties, or vehicles. The 12 V PSU can also be connected to a portable battery to provide a dependable backup during power outages.
Key features

Compatible with AJAX Hub 2, Hub 2 Plus, and ReX 2
Input voltage: 8–20 V DC
Output voltage: 4.65 V ± 3% DC
Screw terminal connection
Suitable for portable battery or alternative DC power sources