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In many cases, this ID is associated with the or similar series of USB-to-Serial adapters. These devices are often used to connect legacy industrial equipment (like CNC machines, medical devices, or networking hardware consoles) to modern computers that no longer have native DB9 serial ports.
A developer connects a USB‑to‑JTAG probe with vid=1e3d pid=198a to debug an ARM Cortex‑M microcontroller. OpenOCD or esptool (for Espressif chips) can use it as a low‑cost transport.
If you are on Windows and seeing a yellow exclamation mark, here is the step-by-step resolution: vid = 1e3d pid = 198a
lsusb -d 1e3d:198a -v # Shows device descriptors, endpoints, configurations
The combination 1e3d:198a is documented in multiple open‑source projects (Linux kernel, libusb, Wireshark USB decoders) as: In many cases, this ID is associated with
If you found this post by searching for vid = 1e3d pid = 198a , you are likely holding a SUNIX USB-to-Serial adapter. It’s a workhorse of a device designed for industrial reliability rather than consumer flashiness.
If you are a Linux user troubleshooting this ID, you might have encountered an issue where the device is detected but not assigned a /dev/ttyUSB or /dev/ttyACM port. OpenOCD or esptool (for Espressif chips) can use
When a device with these IDs is connected, it typically reports the following details to the host operating system: Usb Device Id Vid 1e3d Pid 198a Fixed
In the world of computing, these cryptic alphanumeric strings are the DNA of your hardware. Today, we are going to decode exactly what this specific ID pair represents, why it matters, and how you can use this information to get your device up and running.