Model :

Hardware Version :

Firmware Version :

ISP :

Does anyone know the differences between the the different HARDWARE version numbers of the PA9020P ?
There are 3 versions listed in the US (V1,V2 and V3).
There are 2 versions listed in the UK/EU (V1,V2).
They have different data sheets but no technical differences stand out.

V1 has firmware updates but V2 and V3 don't ?

US
http://www.tp-link.com/en/download/TL-PA9020P-KIT.html

UK
http://www.tp-link.com/uk/download/TL-PA9020P-KIT_V1.html