This card is simply the Roll of cards! I am a Sandisk user for years, but now I switched to Lexar! The x1000 Lexar are faster and no more expensive than the Extreme Pro, this is really a must for professionals. It is ideal for including shoot in RAW videos with Magic Lantern! (In this case, it is significantly more expensive than Komputerbay but also more reliable ... The quality has a price anyway)