Model :

Hardware Version : Not Clear

Firmware Version :

ISP :

As a Mac user I have spent ages trying to get the utility application to work using Parallels and Wine. Both allowed the app to run but I could not detect the connected power line device.

I then managed to find a Mac version of the Utility app http://uk.tp-link.com/download/TL-PA451KIT_V2.html on the UK version of the TP-Link site.
The app is not signed with a registered developer, but I ran it anyway
I have used on Mavericks, it only took a handful of seconds to recognise the connected device.
I was then able to add a new device to my network.

I have no idea why this has not been publicised more extensively.

Enjoy
Paul