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USBHub3c gives developers and engineers full control to validate, control, and test the limits of devices built on the Power Delivery (USB-PD) and USB-C specification. Simple software APIs allow control over all USB-PD parameters, including intentional error states, connectivity options and real time measurements. Cross platform app is available to help explore device capabilities and control everything in your USB-PD life. USBHub3c Lab Editon: Ideal for battery charge and lifetime extension applications such as mobile-device test labs. Includes support for fixed voltage power sourcing of 5V up to 3A and full Power Delivery sinking support.

Pro version. Ideal for validation and verification testing whether it's done in a production environment or on an engineer's desk.

Lab version. Ideal for deployment in applications requiring devices to be continuously connected such as mobile-device regression test lab.

For both versions Acroname offers an additional add-on for purchase, please contact us for more information.




The ability to identify cable capability is essential for PD analysis. Cable ID is a built-in feature on the USBHub3c and comes standard out-of-the-box. Our hub will interrogate e-mark chips and tell you everything you need to know about USB-C cables, including:

Max Data Transfer Speed
Voltage rating
Current rating
VID and PID (vendor and product IDs)

What is an e-mark chip? An e-mark chip is embedded in most full-featured USB cables and gives important information about the cable. E-mark gives the end-user information about the cable and its capabilities. This allows you to ensure the cable you are using meets the specs you need for its intended purpose.

Performing cable identification can speed up your troubleshooting process. Using an incorrect cable can cause problems in both testing and production. Cable ID ensures you have the correct cable for the job - allowing you to troubleshoot the root issues.

Adding Cable Identification is just one more way Acroname works to give you the most accurate and applicable testing and analysis of USB power delivery. Buy your USBHub3c today and get Cable Identification built-in.

*Cable Identification is not available on our USB Switch.


Each USBHub3c is uniquely addressable and controllable from a host PC via the selected upstream port (0 by default) or through a dedicated Control Port. Acroname’s BrainStem™ link is then established over the USB input and allows a connection to the onboard controller in the USBHub3c. USBHub3c can be controlled via a host running BrainStem APIs.

What do you do if you need to access your USB hub’s internal controller but have all of the ports in use? With our USBHub3c, you don’t have to unplug a port or undo your USB tree. Our hub has a dedicated port for access to its control function. We incorporate our Brainstem technology into our hub so that it can be autonomous OR controlled via the independent, dedicated port.

Let’s break it down a little. BrainStem control exists on either the Control Port or whichever of ports 0-5 is currently defined as the upstream port. Because the Control Port is the BrainStem link’s higher priority connection, it will be the default whenever it has an established connection–so no other port will have the option of BrainStem connection. That said, if there is no connection via the Control Port, any of ports 0-5 can be the upstream port and thus have the BrainStem link.

With the BrainStem link, you have control of all other port configurations (whether you’re connected via Control Port or the current upstream channel), which prevents a locked-up configuration of your hub. For example, you don’t have to worry about being unable to access or connect to the hub, you’ll always have either Control Port or upstream channel control.

When the Control Port is not in use, you can set any port to be the upstream port. But when the control port is in use, it will override any other ports trying to control the hub. This allows you to do upstream and downstream testing without breaking your USB tree or risking bricking the hub.


The Acroname hub can draw power from any port to run itself. However, we also have a dedicated Power-C 100W power-only USB C port.

This port passes no data but can be used as a dedicated power function on the hub so it can share power with all other ports. This will free up your ports to do actual PD testing and analysis. This specific power port is limited to 100W that will be shared as negotiated between all the other ports.

If you need even more power for your devices, we also have the option of adding a power supply for the unregulated voltage input. The DC input can accept anything from 6 to 48 volts input.

We recommend Acroname’s external AC to DC power supply (or you can use a third-party DC power supply).

Our hub has a peak input power of 500W. Acroname power supplies come with all necessary cables and run at 24V to maximize the power output of the hub.


In addition to turning on and off an entire port, our USBHub3c also allows you to enable and disable individual functions on the port itself.

This allows our hub to test a device using only USB 2.0, 3.0, and other common standards. It also allows ports to serve as power only or data only. What’s more, you can also do programmatic cable flipping with our universal orientation cables (item C44 or C46). This lets you test both orientations of a USB-C connector without manually flipping the cable.

This granularity of control allows engineers to test hundreds of different variations or hundreds to thousands of different “plug and unplug” tests to solve intermittent connection issues or long-term durability issues.

Say goodbye to spending hours trying to replicate problems or testing across various protocol versions. Get the USBHub3c and use software to automate those tasks instead.


This is a feature that separates us from the competitors–we don’t stop at PD analysis, we give you control of the power delivery functions on each port individually.

Our hubs allow you to manually override the standard power negotiation that happens on a USB port to only give a device a specific amount of power.

Want to only give 2 amps at 5 volts? No problem. You can dial that up right from the software dashboard.

Need to give a full 100 watts at 20v to charge a laptop? We can do that too. And just about everything in between.

Our advanced PD control gives you best-in-the-industry control over the exact amount of power being passed to your device at any given time - allowing testing and manufacturing engineers to understand how their devices function in a variety of situations.

Adding the External Load feature gives you even more testing capability. Beyond using the power from your tested PD source to run the hub, you can route that power to the external connector for DC power loads and other sink testing.


The USBHub3c is compatible with USB 10Gbps and all previous USB generations. This allows for maximum compatibility of current and previous-generation devices.

Each generation of USB connectivity has delivered increased speed and capability. This most recent iteration, Gen 2x1 (aka SuperSpeed+), provides data transfer at 10Gbps. That’s double USB Gen 1x1 (aka SuperSpeed), which has a file transfer rate of 5Gbps.

When you’re performing power delivery analysis, you need to have the ability to test the most recent/fastest USB standards and make sure your device is backward compatible. With our USBHub3c you can test under each specific USB generation protocols.

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