The productId read-only property of the HIDDevice interface returns the product ID of the connected HID device.

An integer. If the device has no product ID, or the product ID cannot be accessed this will return 0.

The following example retrieves devices with HID.getDevices() and logs the value of productId to the console.

document.addEventListener("DOMContentLoaded", async () => {
  let devices = await navigator.hid.getDevices();
  devices.forEach((device) => {
    console.log(`HID: ${device.productId}`);
  });
});