1U 19″ Rack Mountable 8 Port Managed-USB Hub U8S-RM

Rackmounted Managed-USB Hub for data centre, hardware testing and SQA applications.

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Our industry standard U8S product re-housed within a rugged 1U 19″ Rack Enclosure


  • Mobile software testing / mobile software QA (SQA) systems.
  • Mobile device application testing rigs.
  • API controlled production test rigs.
  • Automated test rigs.
  • Mobile device lab equipment.
  • Mobile device management and charging.
  • Data Centres.
  • Mobile device programming stations.

Benefits & Features:

  • Works with Apple Configurator.
  • Rugged 1U 19″ Rack Mountable enclosure.
  • Internal electronics based heavily on our U8S design with identical API operation.
  • Individual power control/cycling/monitoring for each port individually.
  • Application Programming Interface (API), for control and monitoring of ports, available for Mac / Windows / Linux (x86/Arm).
  • The U8S-RM uses our U8S which is a UL Recognised module under UL file #E346549.
  • 8x Downstream 480Mbps USB2.0 ports for charging and data.
  • Access, charge and monitor 8x USB devices simultaneously.
  • Expansion port to allow daisy-chaining of additional U8S-RM products.
  • Compatible with Apple Configurator/iTunes plus most MDM software and Mobile Heartbeat.
  • High-current (2.1Amp / 10W) universal charging for all USB devices.
  • Supports SDP, CDP, DCP, BC1.x, SE1, Apple, Samsung, ACA-x, YD/T-1591, RIM etc.
  • Emulate charger connect and disconnect cycles.
  • Emulate USB data connect and disconnect cycles.
  • Live viewer App for port monitoring and control via a GUI.
  • Internal 100W industrial PSU with worldwide input range.
  • 2 Year RTB warranty.

General description:

The U8S-RM Rack Mounted Managed USB Hub allows a user to connect and charge 8x USB devices with a single host. It is a 1U Height, 19″ Wide rack mountable unit designed primarily for data/test centre applications where high reliability and functionality is required.

The U8S-RM should not be confused with a standard USB Rack Mounted hub, the U8S-RM is, like all Cambrionix products, very over-engineered to provide both high current charging for 8x power-hungry USB devices as well as robust data transfer to the host and a control interface accessible via our API (application programming interface) or Live Viewer App. Our API allows you to integrate full control and monitoring of the U8S-RM USB ports into your existing test scripts.

Full details of our API can be found on our downloads page under API.


Reliability was the number one priority when designing the U8S-RM and as a result, we are yet to receive any returned units. The U8S-RM is in use within many rack mounted USB test systems worldwide and is trusted to operate 24/7 within test/data centres without downtime. This is the reason why Cambrionix is the number one choice for software (SQA) and hardware test companies.

Our reliability means that once the U8S-RM is built into its target system (such as a software or hardware testing rack) you are highly unlikely to have to revisit the device for service/repair.

Internally, the U8S-RM Rackmount USB Hub has a microcontroller at its heart which allows our unique API and Live Viewer app to display information about each port and also allows the user to control those ports in a variety of ways. We have partnered with a number of component suppliers during the development of the U8S-RM and have deep knowledge of every component used within the U8S-RM design.

The U8S-RM Rackmount USB Hub is supplied with the latest Cambrionix firmware although updating the firmware is performed quickly and easily using the Firmware Updater App which is available as a free download. We can offer new versions of firmware to add additional API features and additional charging profiles for obscure devices which may not necessarily adhere to documented standards (or not be on the market yet).

The U8S-RM supports our API which allows you to automate, monitor and control each port programatically using a variety of programming languages. With the API you can monitor current consumption of each individual port, total connection time, charging time, turn power on/off to individual ports, emulate different charging profiles, read USB VID/PID and much more.

The API consists of a service module or daemon that is loaded on the host computer. The service module is accessed via JSON-RPC calls over a TCP/IP socket. Cambrionix provides sample Python code complete with the necessary JSON library code to be able to make the necessary calls for controlling Cambrionix products that are connected to the host computer.

It is of course possible to access the API from any programming environment that has support for making JSON-RPC calls over a TCP/IP socket.

The API is available as a free download and is well documented and supported by Cambrionix engineers.

We also supply our Live Viewer App which allows you to monitor and control ports using a graphical user interface.



The default configuration for the U8S-RM is that it will attempt to charge any USB device you connect to it when not connected to a host. When the U8S-RM is connected to a host it will switch all ports into a data/sync mode but will also attempt to charge the devices at the same time. Most mobile devices support this which means you can charge and sync simultaneously. If they are older devices then we have an application called ChaSync (available within our downloads section) which communicates with the iOS device and enables simultaneous charge and sync.

The U8S-RM is available without an MOQ and volume discounts are available at 50+ units.

Distributor and reseller minimum order quantities apply, please contact enquiries@cambrionix.com for details.


Operating Ratings:

  • Operating ambient temperature: 0 to 35 Degrees Celsius.
  • Relative humidity: 5% to 95% non-condensing.
  • AC Input: 110-240VAC / 2A (max)
  • DC Output: 5.2V / 2.1A per USB port.

Packaging Information:

  • Approx Size (W/L/H): 48.2cm x 27cm x 4.2cm (19″ x 10.5″ x 1.75″)
  • Approx Weight: 3kg
  • Supplied as: U8S-RM Rackmount USB Hub and power cord in foam lined cardboard box.