you should know how rare this is . 

Nothing need to say. 

Here is the video I just take:

https://www.youtube.com/watch?v=c_4V8GL61FM

No returns, I will do whatever tests you want, can upload any video tests on youtube, once you are happy with them, considering the value of this GPU, no returns for any reasons, coz I dont want any tricky thing on your side. Buy this means you agree. 

For US buyers, the tariffs are changed frequently, i will let you know it when i come to post office.