This article explores the technical significance of these identifiers, how to interpret them, and why they matter for troubleshooting and hardware compatibility.
Example: An embedded sensor with VID_214B PID_7250 may enumerate as /dev/ttyUSB0; a udev rule makes it available as /dev/my_sensor.
Right-click and choose , then unplug the hub, restart your computer, and plug it back into a fresh port.
: The VID_214B controller usually relies on high-speed USB 2.0 power limits. If you have chained multiple heavy peripherals (like external hard drives or RGB pads) into the device, it will brown out. Connect the device to a powered USB hub that plugs into a wall outlet. usb vid-214b amp-pid-7250 amp-rev-0100
Locate the device with the yellow warning sign under . Right-click it and choose Update driver . Select Search automatically for updated driver software . 2. Download Drivers from Manufacturer (HP)
Integrated hubs found inside "USB to Ethernet" adapters or laptop docking stations. Driver & Compatibility Information Connection of devices by USB - NVIDIA Developer Forums
The code usb vid-214b amp-pid-7250 amp-rev-0100 identifies a simple, functional, and extremely common USB 2.0 hub from Huasheng Electronics. It works out of the box on nearly all operating systems, making it a convenient solution for expanding your USB ports. However, its performance is strictly limited to USB 2.0 speeds, and its build quality can be inconsistent, leading to occasional reliability issues. It is a budget-friendly device that works best for low-bandwidth peripherals like a mouse and keyboard, but it is not suitable for demanding tasks. This article explores the technical significance of these
If the device appears in Device Manager with a yellow exclamation mark or as "Unknown USB Device (Device Descriptor Request Failed)," follow these steps: 1. Power Cycle the USB Bus "Ghost" entries in the registry can cause conflicts. Unplug the USB device. Device Manager devmgmt.msc Universal Serial Bus controllers Right-click every instance of USB Root Hub and select Uninstall device
Registers back to Huasheng Electronics / Ameco Technologies (Shenzhen) Co., Ltd. . This silicon foundry specializes in low-power, high-yield USB physical layer (PHY) microcontrollers.
Every USB device carries a unique digital signature made of three key parts, which the user's search query directly reveals: : The VID_214B controller usually relies on high-speed USB 2
: Verify data transfer metrics using tools like CrystalDiskMark. If read/write benchmarks cap out at exactly 35 to 40 MB/s, the hardware architecture is executing at its ceiling limitations. 3. Intermittent Recognition Failures (Code 43)
┌──────────────────────────────┐ │ Device Connection Failure │ └──────────────┬───────────────┘ │ [ Check Power Draw ] │ ┌────────────┴────────────┐ ▼ ▼ Under Powered? Power Adequate? (Bus overload) (Driver/Signal issue) │ │ ▼ ▼ Use Powered Hub Run HW Diagnostics 1. Resolve Power Instabilities (In-Line Voltage Droop)
Ultra-slim desktop extensions (branded under names like Ginzzu, Maxxter, or iSoul) that turn a single PC port into four usable Type-A slots.
The USB VID-214B&PID-7250&REV-0100 is used in various ways:
