After extensive cross-referencing with open-source USB ID databases (like usb-ids from the Linux kernel) and vendor driver packs, the manufacturer behind VID_214B is (also referred to as Huaxu Technology or generic Chinese IC designers).
: 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. usb vid-214b amp-pid-7250 amp-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. Given the VID, PID, and REV, we can
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 and PID-7250 (with a revision of 0100) represents a specific fingerprint in the vast hardware database. While users interact with friendly device names like
Example: If Device Manager shows VID_214B&PID_7250 and the device appears as “USB Composite Device” or “Unknown,” search vendor resources for a Windows driver that lists VID 0x214B / PID 0x7250.
The string is the digital fingerprint of a Huasheng Electronics USB 2.0 Hub . The Identity
USB hub only recognised intermittently - Raspberry Pi Forums