: While some physical products using this chip are marketed as "USB 3.0," the internal 214b:7250 controller is often a
For rare cases involving REV-0100 chips, Huaxu released a firmware update tool that forces the chip into a compliant mode. Use only if the device is unusable.
Yes. Linux (kernel 3.x+) should recognize it as usb-storage automatically. If not, run sudo modprobe usb-storage . macOS will treat it as a generic external drive. No drivers needed.
Many users encounter this specific Hardware ID in their system logs when it starts behaving erratically (e.g., constantly waking a laptop from sleep or spiking CPU usage with "interrupts"). usb vid-214b amp-pid-7250 amp-rev-0100
If the device with VID 214B, PID 7250, and REV 0100 is not being recognized properly by your computer:
Because this chip is commonly deployed in unpowered, budget external hubs, users regularly face intermittent connectivity or system recognition failures. Below is a structured troubleshooting framework to isolate and resolve these issues.
drivers built into Windows, macOS, and Linux. No third-party software is usually required for basic operation. USB 2.0 Specification : While some physical products using this chip
This deep-dive guide covers the underlying architecture of this controller, troubleshooting steps for common connection drops, and driver installation guidelines. Hardware Architecture: Inside the Huasheng HS8836A
The USB device identified by VID 214B, PID 7250, and REV 0100 is a unique piece of hardware with its specific functions and requirements. While detailed information about this exact device might be scarce without direct access to vendor resources, understanding the role of VID, PID, and REV in identifying and managing USB devices can help in troubleshooting, driver installation, and utilization of the device’s full capabilities. As technology evolves, the precise function of this device may become clearer, along with the availability of software and support to enhance its usability.
Linux distributions map the hardware dynamically inside the kernel using the core usb-storage and hub modules. When executing the lsusb command, the environment queries the device descriptors and populates the text output directly: Linux (kernel 3
| Attribute | Value | |-----------|-------| | Manufacturer | Huasheng Electronics | | Common product names | USB2.0 HUB, AIMOS AM-UK404, Sandberg 336‑50, generic 4‑port hub | | USB version | 2.0 (High‑Speed, 480 Mbit/s) | | Number of downstream ports | 4 | | Supported speeds | Low‑Speed (1.5 Mbit/s), Full‑Speed (12 Mbit/s), High‑Speed (480 Mbit/s) | | Power modes | Self‑powered (external adapter) or bus‑powered | | Charging support (MW7299) | BC1.2 (1.2A), PD3.0 up to 20V, QC2.0 (5V/9V/12V/20V) | | Key controllers | HS8836A (basic hub), MW7299 (hub + PD + charger) | | Linux driver | Built‑in hub.c module (works automatically) | | Windows driver | Microsoft inbox driver (no manual installation needed) |
Identifies the specific USB 2.0 Hub controller.
: Indicates device firmware version 1.00.