Has a write speed of 13MBps. Read speed is difficult to measure. Space available is 29.27GiB ( According to latest standards 1GiB = 2^30 bytes. 1GB = 10^9 bytes). Technically, it is 31.5GB! The only other MicroSD of 32GB which writes faster is Samsung 32GB evo class 10 that costs 150 rupees more and offers 16.5 MBps speed. Sandisk Ultra 32GB offers 16MBps speed and is costlier than EVO. So, I am ruling that out. Now, among the two: class 6 offers 32GB, 13MBps @ 950 & class 10, 16.5MBps @1100, I find class 6 as higher value for money as 13MBps is a decent enough speed for any mobile/tablet. Even the internal memory is 10-12MBps speed. So, the extra 3.5MBps is not needed at the price of 150 rupees

This is a great product from Samsung and i'm very satisfied with it. Granted that i have been using it only for the past 2 days but its living up to its predecessor which was a 16 GB Class 10 card from Samsung. Though this is a Class 6 card the performance drop is not noticeable. There is no lag while recording or playing full HD content on this SD card. I have a few application installed on this card and there is no delay from those as well. Overall a great product and thanks to Flipkart the entire experience from buying this till putting it in my Tablet has been a breeze. Keep up the great job guys!!! n

First Thanks to Flipkart to deliver one day before than estimated and make avail this FOUR PROOF technology card... Awesome Memory Card in the class and much reliable than other cards... As i upgraded from 16gb Samsung 6class (3 proof technology) to 32gb Samsung 6class (4 proof technology)with this card The performance of card as noted the READ speed 24mbps and WRITE speed of 15mbps I got the read speed of 20-22mbps and WRITE speed of 10-12mbps with Nokia Lumia 620. 29.27gb usable space available... finally its a great memory card at this price with high quality and performance just grab it...