10/100 Ethernet

USB ID 2001:400b · D-Link Corp.

VendorD-Link Corp.
Vendor ID2001
Device ID400b
Windows hardware IDUSB\VID_2001&PID_400B
Linux modaliasusb:v2001p400B
Linux driverpegasus

Frequently asked questions

Which device has USB ID 2001:400b?

USB ID 2001:400b is “10/100 Ethernet” made by D-Link Corp. (vendor ID 2001, device ID 400b).

Which Linux driver supports 10/100 Ethernet?

In Linux kernel 6.12 the device is bound to the driver pegasus (source under drivers/net/usb). The driver is normally loaded automatically when the device is detected.

How do I check whether 10/100 Ethernet is in my computer?

On Linux, lsusb -d 2001:400b shows the device if it is present. On Windows, open Device Manager, then Properties → Details → Hardware Ids; it appears as USB\VID_2001&PID_400B.

How do I see which driver is currently in use?

lsusb -t prints the device tree with the bound driver (Driver=…) for each interface.

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