I use it for Canon 5D Mark III ( Professional Use )- Works like Magic!- FAST. V.Fast.- Tip : Format using In-Camera Option before use. ( Makes it faster . In Fact always use this option only )- I can finally achieve the full buffer capacity of around 14 RAW in High Speed Continuous Mode @ 6 FPS- After 14 High Speed RAW Shots, the card + camera is immediately ready for another shot right away. NO LAG.- In a Second or Two - You see the buffer showing "3". You can now click another 3 shots @ 6 FPS ( without any delay )- When tested with Highest Quality JPEG only setting ( You get an infinite buffer, it says 67 shots- If you anytime take 2 seconds gap, the buffer gets refreshed giving you zero lag b/w shots. You will never run out of buffer.- It comes in a "SD Card Jewel Box Case" ( Google it. ) ( Transparent Card Holder )- Which comes handy in storage :) SO that's a PLUS too.GENUINE v/s FAKE??- It is a Genuine Product. ( How do I know it ? )- How to test if the any SanDisk product is genuine ?- Go To SanDisk Website > Support > Register New Product- Create a New Account to Register your Product- It asks for Shopping Date ( So check that in your "Orders" on Amazon- It asks for Shopping Place ( Select Online > Amazon.com )- Where can you find the product code or serial number on a SanDisk product?- Enter the Product Serial, For this Card : Its Written on the back of the Card ( Very small font )- After you are done, If your product is accepted & registered you are good to go! :D

Let's talk about the card fast. It's Fast & Fluid. No issues whatsoever. But...If you think the price is a bit out of your budget, there's a little hack. You can buy a Micro SD card of the same grade with an adapter. It will cost you half the price. But don't forget to keep extra adapter(s) as it might fail sometime. In my case, till now I haven't had any issue with adapter.Keep Shooting!!!

For the product I am giving 5 Stars.But I am totally disappointed by the time taken for the delivery. Being a Prime member I had to still wait for 1 week to get the product. I had a photography assignment and due to late delivery I had to fallback on my older cards.Also the coupon (2 years free license) given for Recovery software is not working because when I try to download the software I always get message in my browse that file contains virus and can't be downloaded. Thanks.