controller. You'll often find these controllers in budget or unbranded USB drives, including some "fake" high-capacity drives sold on online marketplaces. Common Issues and Solutions
If you want, paste the device's full USB descriptor output (lsusb -v or the Windows Hardware Ids + iManufacturer/iProduct strings) and I will identify likely vendor, device class, and next steps. Usb Device Id Vid 1e3d Pid 198a
: Usually a Chipsbank CBM-series controller (e.g., CBM2093 or similar variants). Performance controller
macOS often refuses to mount Chipsbank-based drives, especially those with invalid partition tables. To fix: Usb Device Id Vid 1e3d Pid 198a