SanDisk Extreme 128GB microSDXC Memory Card + SD Adapter up to 100MB/s, Class 10, U3, V30, A1

Not the first one I bought. Works well. It has better memory than me so in case I need memory card again with fast writing speeds, this is the one.

Memory is getting cheaper every day, but unfortunately the counterfeit memory sneaks in at the low end of the price. The genuine memory cards are brilliant and worth the investment. A decent speed rating helps quicker transfers. This resides in my phone for extra storage capacity and my phone has no problems with it.

Sandisk are leaders in making memory cards. When it comes MicroSDs and SDs, i never stray away from buying from Sandisk. They are absolutely the most trustworthy digital memory company when i need storage in my drones, gopros and other cameras.I use this card for both my GoPro Hero 7 Black and the DJI Mavic Air and i have also tried this on a DJI Spark. The former two write at 4k, and I have never had any write issues or read issues with a Sandisk. Even better is that this is a Sandisk Extreme which means the read speed is fantastically fast.I have stored up to the full 64gb on this card, with no issues. Whereas in the past when i have used Toshiba or other brands, the memory card can get a bit glitchy when almost full. Sandisks are reliable, and will as long as they keep producing high quality products.

Very quick memory card, used it in a GoPro no problems (never a doubt). Buy it here no idea how retail shops are selling this exact memory card sometimes for more than double!

The media could not be loaded. Seems like a good card.I got speeds of around 60MB/s writing and 75MB/s reading through my Windows laptop. On my mobile phone I got around 47.5MB/s writing and an impressive 82.5MB/s reading.Performance on my laptop was slightly less than what I expected, but I was impressed with how it performed on my mobile phone. Transfer speeds are less important to me as I am only transferring files. Mobile performance is much more important as that is where I need to record video at 4K and watch 4K and play games etc.Obviously, the real test comes from using this for months and years, but my initial impressions of the SanDisk Extreme 128GB card are positive.

This A2 (albeit, as pre-warned, supplied in manufacturer packaging that said A1) micro SD card was very fast, as expected, when using for running programmes. I was using this on a fast laptop as extra storage for native boot VHDs and Hyper V virtual machines. Using it with a USB 3 adaptor was 10% or more faster than when it was in a card reader slot. My ultimate test was doing a Visual Studio Visual C++ project build all on a Virtual Machine and was very surprised that it was almost as fast as the same build run native the laptop's fast SSD.Very impressive. A1 had been fast doing the same test but this very new A2 class card was another 20 - 30% faster in this very strenuous test.

Fantastic card I love it so much that I bought another one but it was a bit more expensive but it is still worth the price, compare to the shops prices. I have purchased another one for my child.

I bought this to use in my Galaxy S8, it was recognised straight away and seems very responsive. My music and pictures transferred to the micro SD card very quickly.