The device identified by is a testament to functional design. It is a piece of hardware that has survived operating system updates, driver incompatibilities, and the shift to digital-only media. Through the support of driver developers and the flexibility of modern streaming software, this simple USB stick remains a vital bridge between the analog past and the digital future.
Bus-powered operation mode (typically supports up to 500mA allocation)
: USB-to-Ethernet adapters that also include three or four extra USB ports. usb vid214b amppid7250 amprev0100 new
: The Revision Number . This indicates the firmware or hardware engineering revision version 01.00 .
Windows Fix: Open -> Expand Universal Serial Bus controllers -> Right-click Generic USB Hub ( VID_214B&PID_7250 ) -> Choose Properties -> Select Power Management -> Uncheck "Allow the computer to turn off this device to save power." The device identified by is a testament to functional design
While some modern devices using this chip may be marketed as USB 3.0, the 7250 PID often specifically indicates a USB 2.0 internal connection, which may limit data throughput to 480 Mbps. Troubleshooting Common Issues
On platforms like Raspberry Pi or standard Linux kernels, this device occasionally throws device descriptor read/64, error -71 . This happens when the host controller attempts aggressive power-cycling or power management schemes. Bus-powered operation mode (typically supports up to 500mA
Open your preferred terminal window and use the standard utilities to query the system's USB sub-system: lsusb | grep "214b:" Use code with caution.
The VID_214B&PID_7250 controller is built fully compliant with the standard, which defines Universal Serial Bus Hubs.
