The hardware identifier represents a USB mass storage device, specifically a flash drive manufactured by Chipsbank Microelectronics Co., Ltd. .
: Assigned to Chipsbank Microelectronics Co., Ltd.
Before examining this specific device, it's helpful to understand how USB IDs function. Every USB device has a unique Vendor ID (VID) and Product ID (PID) that your operating system uses to identify and communicate with it. The USB Implementers Forum (USB-IF) assigns each VID to a manufacturer, while each manufacturer assigns a PID to a specific product. Usb Device Id Vid 1e3d Pid 198a
If you purchased an incredibly inexpensive drive online (e.g., a "32GB", "1TB", or even a "16TB" external drive from an unverified seller) and it registers as VID 1E3D PID 198A , the device's firmware has likely been hacked. The controller is programmed to report a massive storage capacity to the operating system, but the actual physical storage capacity on the underlying flash memory might only be 8GB or 16GB. When you exceed that true limit, the drive begins overwriting older data, resulting in widespread file corruption. How to Verify and Test the True Capacity
The Product ID (PID) 198A falls within a range of devices typically associated with or capacitive touch/temperature sensor interfaces . However, based on aggregated driver logs and hardware databases, this specific PID is most commonly identified as: The hardware identifier represents a USB mass storage
These identifiers are essentially the digital fingerprint of your hardware:
These are the official factory software suites used to flash firmware and map bad sectors on Chipsbank chips. You must match the version of APTool/UMPTool to the exact controller model identified by ChipGenius. Resources for these files can be reliably searched on specialized databases like USBDev or FlashBoot . Before examining this specific device, it's helpful to
| Attribute | Details | | ------------------ | ----------------------------------------------------------------------- | | | 0x198A (6538 decimal) | | Common Device Name | Chipsea USB Composite Device or Chipsea CSU38F20 DFU | | Device Class | 0x00 (Use class information in Interface Descriptors) or 0xFE (Application Specific) | | Typical Mode | Firmware Download / DFU (Device Firmware Upgrade) – or – Custom HID/I2C Bridge |
When inspected with tools like ChipGenius, a USB device with this ID typically reveals the following details:
: To fix firmware-related issues or "No Media" errors, specialized mass production tools (MPTools) like specifically for Chipsbank controllers are often required. Performance Data Benchmarks from NirSoft's USB Speed Tests indicate varying real-world performance for this VID/PID: Write Speeds : Generally low, ranging from ~3 MB/s to ~10 MB/s. Read Speeds : Typically around 15 MB/s to 25 MB/s.
They typically operate at standard USB 2.0 High-Speed specifications.