1740:3701 — EUB-3701 EXT 802.11g Wireless Adapter [Ralink RT2571W] (Senao)

What is this device?

This is the USB identifier for a EUB-3701 EXT 802.11g Wireless Adapter [Ralink RT2571W] manufactured by Senao. The vendor ID 1740 is registered to Senao with the USB Implementers Forum, and 3701 is the product ID that Senao assigned to this particular model. When you run lsusb on Linux, this device appears as 1740:3701 Senao EUB-3701 EXT 802.11g Wireless Adapter [Ralink RT2571W].

How to identify it on your system

Linux

$ lsusb
Bus 001 Device 004: ID 1740:3701 Senao EUB-3701 EXT 802.11g Wireless Adapter [Ralink RT2571W]

You can filter directly with lsusb -d 1740:3701, or get the full descriptor dump with lsusb -v -d 1740:3701. Kernel messages from dmesg show the same pair as idVendor=1740, idProduct=3701.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_1740&PID_3701
USB\VID_1740&PID_3701&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_1740&PID_3701"

macOS

$ system_profiler SPUSBDataType
    EUB-3701 EXT 802.11g Wireless Adapter [Ralink RT2571W]:
      Product ID: 0x3701
      Vendor ID: 0x1740  (Senao)

Driver help

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

Raw usb.ids entry

The exact lines this page is generated from, in the upstream source file:

1740  Senao
	3701  EUB-3701 EXT 802.11g Wireless Adapter [Ralink RT2571W]

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