Modern operating systems (Windows, macOS, Linux) use the VID/PID pair to search their internal driver databases for the correct software. If a flash drive is not recognized, it means the OS failed to match 214B:7250 to a compatible driver. In most cases, however, these devices adhere to the USB Mass Storage standard, making them "plug-and-play" without requiring proprietary drivers.
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").
If you are seeing this ID in your logs or Device Manager and suspect it is causing issues, follow these steps to force proper power management:
1. Identify the Problem in Device Manager:
2. The Fix: Disable "Allow Wake": If this device is waking your computer from sleep unexpectedly:
3. The Registry Fix (The "Selective Suspend" Trick): If the device is causing high CPU usage or lag, it is likely failing to enter a low-power state. You can force Windows to manage its power more aggressively via the Registry:
This forces the hub to power down its ports when not in use, saving battery life and stopping CPU interrupt storms.
The device identified as USB\VID_214B&PID_7250&REV_0100 is a generic USB 2.0 Hub powered by a chipset from Huasheng Electronics.
This specific hardware ID is most commonly associated with the HS8836A 4-port Hub controller. You will likely encounter this device inside budget-friendly USB hubs, keyboard/mouse switches (like those from AIMOS), or as an integrated component in laptops. Technical Identity Vendor ID (VID) 214B: Registered to Huasheng Electronics.
Product ID (PID) 7250: Identifies the specific USB 2.0 Hub controller.
Revision (REV) 0100: Indicates version 1.00 of the firmware or hardware implementation. Functional Breakdown
The HS8836A chip is a high-speed (480Mbps) USB 2.0 hub controller designed for low-power consumption and small footprints. It is a "Generic USB Hub," meaning it does not require specialized third-party drivers and should work out-of-the-box using the standard Microsoft Generic USB Hub driver on Windows or native drivers in Linux and macOS. Common Implementations This hardware often appears as:
USB Switches: Used in "4-in-4-out" switches (e.g., AIMOS AM-UK404) that allow multiple computers to share peripherals.
Integrated Hubs: Found inside affordable laptops, such as the HP Laptop 15-db1xxx, to manage internal connections like webcams or multiple external ports.
External Hubs: Budget 4-port expansion hubs, often sold under various generic brands. Troubleshooting & Performance Huasheng Electronics — USB Vendor 214B - DeviceHunt
A comprehensive database of PCI and USB hardware vendors and devices. DeviceHunt
When you plug in this device, the operating system reads this information to load the correct driver. The "content" provided by the device includes:
Specifically, this combination is commonly found in:
The USB identifier VID_214B&PID_7250&REV_0100 points to a Huaxu Electronics USB 2.0 bridge chip – most likely inside an external DVD writer or hard drive enclosure. The solution is rarely finding a specific driver; it is about fixing Windows' driver assignment, removing conflicting legacy filters, or updating the firmware.
After applying Method 1 or Method 2 above, 95% of users will see their device transform into a working CD-ROM or disk drive. For the remaining 5%, the REV-0100 hardware has likely reached the end of its functional life.
If you still need assistance, post in the r/techsupport subreddit with the exact text: "Device Manager shows USB\VID_214B&PID_7250&REV_0100 – tried forced driver, no luck." Include your Windows version and the physical device model.
Disclaimer: Huaxu Electronics is a real manufacturer, but this guide is based on aggregated public data and reverse-engineering communities. Always back up your registry before editing.
Detailed Analysis of USB Device: VID_214B&PID_7250&REV_0100
Introduction
The USB device with the identifier VID_214B&PID_7250&REV_0100 is a specific hardware component that connects to a computer via the Universal Serial Bus (USB). This device, like others, is identified by a unique combination of its Vendor ID (VID), Product ID (PID), and Revision (REV). Understanding the specifics of this device requires analyzing these identifiers and relating them to the device's functionality and compatibility.
Understanding USB Identifiers
Device Identification: USB VID_214B&PID_7250&REV_0100
Given the VID, PID, and REV, we can deduce that this device is a part of SiFive's product lineup. SiFive is known for developing RISC-V based microcontrollers and SoCs (System on Chip), which are increasingly used in various embedded systems, including USB devices.
Technical Specifications and Features
While specific technical specifications can't be derived directly from the VID, PID, and REV alone, we can infer some general characteristics based on SiFive's product portfolio:
Compatibility and Driver Support
The VID, PID, and REV are crucial for determining device compatibility and for which operating system (OS) drivers are available.
Conclusion and Future Directions
The USB device identified by VID_214B&PID_7250&REV_0100 represents a specific SiFive product, likely related to their RISC-V based solutions. Understanding this device requires knowledge of its technical specifications, which aren't directly available from the VID, PID, and REV. However, it's clear that this device plays a role in the expanding ecosystem of open-standard, RISC-V based hardware.
As the technology landscape evolves, particularly with the proliferation of RISC-V and USB-enabled devices, the importance of such identifiers will continue to grow. They not only help in device identification but also in ensuring compatibility and facilitating driver development across various operating systems.
Recommendations for Developers and Manufacturers
In conclusion, the detailed analysis of the USB device with the identifier VID_214B&PID_7250&REV_0100 highlights the importance of understanding device specifics in the development and integration of USB peripherals. As technology advances, staying informed on such details will become increasingly crucial for both hardware developers and software engineers.
Understanding the USB Device: VID 214B, PID 7250, REV 0100
The world of Universal Serial Bus (USB) devices is vast and complex, with numerous devices connected to computers and other compatible hosts every day. Each USB device is uniquely identified by a combination of its Vendor ID (VID), Product ID (PID), and Revision (REV). In this article, we will delve into the specifics of a particular USB device identified by the VID-214B, PID-7250, and REV-0100.
What are VID, PID, and REV?
The Device in Question: VID 214B, PID 7250, REV 0100
The combination of VID 214B, PID 7250, and REV 0100 specifically identifies a device made by a company with the VID 214B. Unfortunately, without direct access to the USB-IF database or specific vendor documentation, it's challenging to provide a detailed description of the device's functionality or purpose. However, we can explore possible reasons for the interest in this device and its potential applications.
Possible Applications and Uses
Devices identified by unique VIDs, PIDs, and REVs can serve a wide range of functions. These might include:
How to Find Drivers and Software
For a device with the VID 214B, PID 7250, and REV 0100, finding the right drivers or software might be crucial for full functionality. Here are some steps:
Troubleshooting and Device Recognition
If the device with VID 214B, PID 7250, and REV 0100 is not being recognized properly by your computer:
Conclusion
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.
Here’s a ready-to-use post for a tech forum, support thread, or blog comment section regarding the USB device with VID_214B & PID_7250 & REV_0100.
Title: Help identifying USB device – VID_214B PID_7250 REV_0100
Post:
I’m trying to identify a USB device that shows up in my system with the following identifiers:
VID_214B
PID_7250
REV_0100VID 214B is known to belong to HuawaiWei (or a generic USB bridge controller), but this specific PID doesn’t match common Huawei modems. Some digging suggests it could be:
What I’ve tried so far:
Hardware context:
This came from a cheap USB programmer/TTL adapter purchased online. No markings on the PCB.Questions:
Thanks in advance for any clues!
If you need this post for a different platform (e.g., Reddit, Twitter, GitHub issue) or a different tone (shorter, more technical, or troubleshooting-focused), let me know and I’ll adjust it.
Based on the USB IDs provided (VID:214b, PID:7250), this device is a Generic USB 2.0 Hub (often found inside laptops or desktops acting as a card reader or internal connector hub).
Here is a useful piece of information regarding this device: how to diagnose it if it is consuming high CPU or keeping your system awake.
Because this VID/PID pair is common in cheap, unbranded flash drives, they are sometimes used in BadUSB attacks or preloaded with malware. Always scan the device before use.
Understanding the USB Hardware ID: VID-214B PID-7250 REV-0100
If you have encountered the hardware identifier USB\VID_214B&PID_7250&REV_0100 in your Windows Device Manager or system logs, you are likely looking at a High-Speed USB 2.0 Hub. This specific hardware ID is commonly associated with internal or external hub controllers, such as those found in laptop chassis, KVM switches, and multiport expansion docks. Device Identification and Manufacturer
Vendor ID (VID): 214b – This ID belongs to Huasheng Electronics. They are a common manufacturer of low-power USB controller chips used in a wide variety of generic and brand-name electronics.
Product ID (PID): 7250 – This identifies the specific product as a USB 2.0 Hub. Many community reports suggest this PID specifically refers to the HS8836A 4-port hub chip.
Revision (REV): 0100 – This indicates the firmware or hardware revision version 1.00. Where You’ll Find This Hardware
This hardware ID is frequently spotted in the following devices:
External USB Hubs: Brands like GINZZU (e.g., GR-315UB) often use this controller for their 4-port hubs. usb vid-214b amp-pid-7250 amp-rev-0100
USB Switches/KVMs: The AIMOS AM-UK404 4-in 4-out USB switch is a prominent example of a device utilizing this VID/PID combination.
Internal Laptop Hubs: It is often found pre-installed in laptops from major manufacturers like ASUS and HP, where it manages internal connections for webcams, card readers, or external USB ports. Driver Requirements
For most modern operating systems, including Windows 10, Windows 11, and Linux, no manual driver download is required.
Standard Class Driver: Because the device identifies as a "Generic USB Hub," it uses the built-in standard USB hub driver provided by the operating system.
Automatic Installation: In Windows, it should appear under "Universal Serial Bus controllers" as a "Generic USB Hub" or "USB2.0 HUB". Troubleshooting Connectivity Issues
If you see this ID with a yellow exclamation mark in Device Manager (e.g., "Unknown USB Device (Device Descriptor Request Failed)"), consider these steps:
Power Supply: If using an external hub, ensure it has enough power. Some 4-port hubs struggle with high-draw devices like external hard drives.
Cable Integrity: Intermittent recognition (a common issue with this specific hub ID) is often caused by poor-quality USB cables or loose connections.
Controller Reset: In Device Manager, right-click the "Generic USB Hub" with this ID, select Uninstall Device, and then restart your computer to force Windows to reinstall the standard driver.
Based on the hardware identifiers provided, here is the "story" of your device:
The string "USB VID_214B PID_7250 REV_0100" is the digital fingerprint of a Huasheng Electronics USB 2.0 Hub. The Identity
Vendor ID (VID) 214B: This identifies the manufacturer as Huasheng Electronics.
Product ID (PID) 7250: This specific ID is almost exclusively used for their 4-port High-Speed USB 2.0 Hub controller.
Revision (REV) 0100: This indicates the first firmware version (v1.00) of the chip. Where You’ll Find It
You aren't likely to see "Huasheng" on the box. Instead, this internal chip powers various affordable, third-party peripherals, including:
USB Switches: It is the brain inside AIMOS AM-UK404 4-in-4-out KVM switches.
Budget Hubs: It often appears in generic 4-port expansion hubs like those from GINZZU (specifically the GR-315UB model).
Embedded Systems: It is frequently used to add extra ports to Raspberry Pi setups or other small Linux-based projects. Common "Plots" (Issues)
If you are looking this up because of a technical problem, users commonly report:
Intermittent Connection: These chips can sometimes be picky with power. If it’s failing, it might show up as an "Unknown USB Device" in Windows Device Manager or fail to boot properly on a Raspberry Pi.
Speed Caps: While it claims "High-Speed," it is strictly a USB 2.0 device, meaning its maximum theoretical transfer speed is 480 Mbps.
Are you trying to fix a connection issue with this hub, or are you just curious about what's plugged in?
USB hub only recognised intermittently - Raspberry Pi Forums Modern operating systems (Windows, macOS, Linux) use the
The string USB VID-214B & PID-7250 & REV-0100 refers to specific identifiers for a USB device.
Here is the decoded content and what it means: