If Windows logs a Device Descriptor Request Failed warning alongside a in the Device Manager hierarchy, a signaling error has corrupted communication between the chip and the host root complex.
The string is the digital fingerprint of a Huasheng Electronics USB 2.0 Hub . The Identity
: Many budget hubs using this chip are marketed as "USB 3.0," but they only support High-Speed (480 Mbps) transfers because the internal controller is strictly USB 2.0.
Unplug the hub and the computer from power briefly to reset the controller. Device Manager: usb vid-214b amp-pid-7250 amp-rev-0100
This integrated circuit is a generic, cost-effective silicon block embedded inside dozens of consumer electronics accessories. You will typically find it driving the functionality of: External standalone multi-port USB hubs. USB switches or KVM switches (such as the AIMOS AM-UK404 4x4 switch).
This article provides a comprehensive guide to understanding what this device is, why driver issues occur, and how to successfully install the necessary drivers. What is USB\VID_214B&PID_7250&REV_0100?
Points specifically to their HS8836A 4-Port High-Speed USB 2.0 Hub Controller . If Windows logs a Device Descriptor Request Failed
While the hardware string represents a standard architecture, real-world deployment on low-cost hubs exposes the device to connection or speed bottlenecks. 1. Device Drops Connection Under High Loads
Because it maps to a standard USB Hub class ( Class 09h ), . Operating systems use an industry-standard generic driver stack to manage it: Huasheng Electronics — USB Vendor 214B - DeviceHunt
Old, conflicting hidden device profiles can permanently block a device from properly initializing. Open as an Administrator. Unplug the hub and the computer from power
The same VID/PID combination also powers a more specialised device: the , a 4‑input, 4‑output USB 2.0 switch. This allows four computers to share four USB peripherals (printers, scanners, keyboards, etc.) without constant plugging and unplugging.
When connected to a computer, the device provides , each capable of simultaneous communication at different speeds. You can connect a mouse (Low‑Speed), a keyboard (Full‑Speed), and a USB flash drive (High‑Speed) at the same time without conflict. Most generic 4‑port hubs based on the HS8836A chip—such as the iSoul ultra‑slim hub or the Maxxter ACT-HUB2-4P —use this exact VID/PID.
Because the device is a USB hub ( USB20_HUB ), the root cause is often that the motherboard chipset drivers (AMD or Intel) are not installed, preventing the USB controller from recognizing its sub-components.
I’m trying to identify a USB device that shows up in my system with the following identifiers: PID_7250 REV_0100