Tutorial

Power measurement with the USBHub3+ with HubTool or Brainstem API

How to monitor voltage and power with the GUI or Python

Among other properties, we can view:

  • Per-port Voltage
  • Per-port Current
  • Input Voltage
  • Input Current

Measuring voltage and current with HubTool

If you haven't already, install HubTool, which is part of the Brainstem Dev Kit.
Power on the hub and connect one of the host ports to your computer

How to See USB Devices on Mac: An Easy Step-by-Step Guide

If you're trying to figure out how to see USB devices on your Mac or struggling to find that connected jump drive, you've come to the right place. This guide will walk you through the different ways to view, manage, and control USB devices on your Mac. Whether you’re working with macOS Monterey or an older version of macOS X, these steps will help you navigate through the process effortlessly.

How to Find Vendor ID and Product ID for Your USB Device

Whether you’re a tech enthusiast, developer, or just trying to troubleshoot a pesky USB device, understanding how to check the Vendor ID (VID) and Product ID (PID) of your USB can be extremely helpful. These IDs are like fingerprints for devices—they uniquely identify the manufacturer and type of the USB hardware connected to your system. In this post, we'll walk you through how to find these identifiers on Windows, macOS, and Linux.

Why Vendor ID and Product ID Matter

How Many USB Devices Can I Connect?

Adding more than two USBHub3+ hubs

Some customers who have been using multiple Acroname USBHub3+ hubs have shared with us that they cannot add more than two USBHub3+ hubs to their system or that they need more USB resources. As it happens, this is not a limitation of USBHub3+ itself, but rather a limitation of the host USB controller and the host machine's implementation of the USB controller.