What is the best Micro SD Card for 640 xl ?

[WPCentral Question]

What is the best Micro SD Card for 640 xl ?

 

[N_LaRUE]

The best you can buy. Preferably a Class 10 with the fastest transfer rate you can afford.

 

[Harrie-S]

But get a "well-known" brand and buy it from a "trusted" shop. ("fakes" are sold).