Blizzard Entertainment announced they are working on some behind-the-scenes optimizations, and they need players to help test them out. Read the following parts for more details. BTW, we all know the importance of D3 Items in playing Diablo 3. d3itemsale can offer you the lowest price Diablo 3 Items that can meet your requirements.

Read the original post from the official site.
We're looking for players of all types to participate, so what are you waiting for? Download that PTR and hop right in!
A few important notes:
There is no new content included on this PTR.
While you will be able to copy your existing characters, we will also be activating the 2000% Legendary Find buff to encourage participation.
As a reminder, any progress made on the PTR does not transfer over to your live account.
We will not be opening the PTR feedback or bug report forums, as manual feedback is not needed; we simply need you to play!
Over the course of the PTR, server performance may vary.
This PTR will only be available for a limited time, and we’d greatly appreciate all the help we can get in testing it quickly and with as many participants as possible!
We hope you have some time to help us out. If you need more information on how to participate on the PTR, visit our FAQ or see below for details.
How to Participate
PTR Character Copy
Thank you, nephalem, and we'll see you in Sanctuary!

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