Why is this Sony USB-ethernet adaptor so expensive?

[Cogwork]

Other USB adaptors are less than £20, so why is this one so expensive?

Here's the link!

 

[office politics]

could be the brand name. i didnt see any specifics but prolly a 10/100 right? But what speed does usb operate at?

 

[HoLoCroN]

even if it was a usb 2.0 device, its not worth the money...