Usb Vid-214b Amp-pid-7250 Amp-rev-0100

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 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. usb vid-214b amp-pid-7250 amp-rev-0100

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

Introduction: What Are You Looking At?

If you have landed on this page, you have likely opened the Device Manager on your Windows computer, expanded "Universal Serial Bus controllers" or "Other devices," and found a yellow exclamation mark next to an unknown device. Upon checking the properties under the "Details" tab, you saw the hardware ID: Disclaimer: Huaxu Electronics is a real manufacturer, but

USB\VID_214B&PID_7250&REV_0100

This alphanumeric code is not random. It is a fingerprint left by the manufacturer of a USB device. This article decodes every part of that identifier, explains which device it belongs to, provides official driver solutions, and offers step-by-step troubleshooting to get your hardware working again.

Conclusion: You Do Not Need a Mysterious Driver

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.

This identifier corresponds to a USB 2.0 Hub typically using the HS8836A controller chip.

Vendor ID (VID) 214b: Assigned to Huasheng Electronics (also known as Ameco Technologies Shenzhen Co., Ltd.).

Product ID (PID) 7250: Identifies the device as a generic USB 2.0 Hub.

Revision (REV) 0100: Indicates the device firmware version is 1.00. Common Applications This specific hardware ID is frequently found in: Stand-alone USB hubs: Such as the GINZZU GR-315UB 4-port hub USB Switches: Example includes the AIMOS AM-UK404 4x4 USB 2.0 switch

refers to the specific firmware version or hardware revision of that chip. Title: Help identifying USB device – VID_214B PID_7250

This identifier frequently appears in low-cost consumer electronics, such as 4-port USB splitters, KVM switches (like the AIMOS AM-UK404), and integrated laptop hubs. Driver Information For the vast majority of users, no manual driver installation is required

USB hub only recognised intermittently - Raspberry Pi Forums

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_0100

VID 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:

• A USB to UART bridge (possibly CH340-like clone)
• An external storage adapter (SD card reader)
• A firmware update mode for a microcontroller board (Arduino clone, ESP, or similar)

What I’ve tried so far:

• Checked Windows Device Manager → shows as “Unknown Device” with error 43
• Tried Linux lsusb → identifies only VID/PID, no string description
• Attempted generic drivers (CDC ACM, WinUSB, libusb) – no success yet

Hardware context:
This came from a cheap USB programmer/TTL adapter purchased online. No markings on the PCB.

Questions:

1. Has anyone successfully installed a driver for this VID_214B/PID_7250?
2. Could this be a counterfeit Prolific or FTDI chip?
3. Any known working .inf files for Windows 10/11?

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.

Title: Decoding the Hardware Identity: A Deep Dive into USB VID 214B & PID 7250

Introduction

In the complex ecosystem of Universal Serial Bus (USB) devices, every piece of hardware speaks a specific digital language. While users interact with friendly device names like "Wireless Mouse" or "Flash Drive," the computer’s operating system sees something far more precise: a set of numerical codes. Among these, the combination of VID-214B and PID-7250 (with a revision of 0100) represents a specific fingerprint in the vast hardware database.

This article explores the technical significance of these identifiers, how to interpret them, and why they matter for troubleshooting and hardware compatibility.

4. Common Issues & Context (REV 0100)

The REV 0100 often indicates a specific firmware version on the USB bridge chip. This particular revision is known for:

• Hardware encryption: Some WD My Book drives use this bridge to perform real-time AES hardware encryption. Removing the hard drive from this enclosure will render the data unreadable unless you use the same bridge board.
• "S.M.A.R.T." passthrough: Depending on the driver, S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) data from the actual hard drive may be blocked or allowed.

Driver Compatibility

• Windows/macOS/Linux: Uses the standard USB Mass Storage Class driver (usbstor.sys, UAS, or umass). No special driver required.
• Potential issues: Some low-end controllers with Rev 0100 may show erratic behavior on USB 3.0 ports or during simultaneous read/write.
• Chip tooling: Can often be identified by ChipGenius or USBDeview as a “CBM209X” or similar (e.g., ChipsBank or Alcor Micro).