Strontium Nitro A1 64GB Micro SDXC Memory Card 100MB/s A1 UHS-I U3 Class 10 with High Speed Adapter for Smartphones Tablets Drones Action Cams (SRN64GTFU3A1A)

I ordered two. I need this microSD (microSDXC) card for a serious Raspberry Pi Project,where I need to extract entire microSD OS images quickly once the development is done.And the other one I need for my smartphone (Redmi Note 9 Pro).I am using Strontium cards since 2016. Earlier I got few bunch of 16GB ones. So far all areworking fine without no cell corruption (recently I checked via the command)sudo badblocks -w -s -o error.log /dev/<drive>WARNING: Never do this on a drive containing important data/bkp. It will rewrite entiredrive/card byte by byte, there by destroying data whatever written earlier. But a greattool to evaluate USB Flash Drives as well memory cards.I tested this with TRANSCEND TS-RDF8K2 USB 3.1 Multi Card Reader, which I ordered alongwith this. I got around 90+MB/s close to 100MB/s specs. If I find any issues/data-loss/corruption in the future, will update this review. So far its good. Worth the money.Of course I may use this in future for my NIKON camera. As I shoot video for myYoutube Channel: The Linux ChannelGo to YouTube & see it by yourself!(Have uploaded the thumbnail poster)Video:21a Unboxing & Performance Tests | USB 3.1 multicard reader | microSDXC cards #RaspberryPi Projects

Quality & performance is good.

I use for years good

Easily file transfer

Average product

Edit.12 Jan 19... Card went bad, but contacted strontium and they called the faulty unit back. Shipped it to delhi and replacement was sent in 15 days.New card is 1500. Lost data128 sdxc U3 I...Bought this for 2569 initially and tested it on H2W Tester gave maximum write speed of 19 mbps and read as 25. The minimum write speed of U3 card is supposed to be 30 mbps whereas what i got is 20 at max. Though i dont expect whats written on top like "100 mbps read and 90 mbps write" that is all crap and is just a cheap mrkting trick but U3 as per international SD card association means 30 mbps write speed minimum.There is no quality standard for Indian markets if u buy the same brand card sold in EU or USA Or some developed nation u will c the compliance of these standards for that is why it is labeled as U3 U2 U1. The cards sold in India are deleberately substandard and ironically these companies don't care to adhere.Though I had returned it but amazon offered this card for 2200 in a deal .Bought it to give it a try and voila it Gives UPTO! 80 mbps write nd 90 read speed and minimum sustained 44 mbps and 85 mbps r/w speed on same H2w test on same computer and same card reader.obviously previous of was substandard/duplicate.World over it statistical fact 30% cards r fake. Sd card manufacturing is complex and only original card can give you labelled speed as per Sd card assosciation ratings.So my advice is do test it when u buy and do try replacements until u get what u pay for. If u have paid 3000 for 20 to 29 mbps write speed card ur card is worth 2k only.Now that its workin for me revising the rating to 4*s Coz in 2200 I don't expect 80-100 speed. Samsung select u3 is offering same product in 3k and speed is less or probably same. Satisfied with this price.1* taken for maintaining standard quality control.

Bought this for 70mai dash cam as the dash cam didn’t work with Samsung & San disk cards. Works seamlessly with 70mai dash cam.

Just used it for 1 week in my car dashcam, it says memory card corrupted and unable to use further now even after formatting

The media could not be loaded.  This offers extra storage for either your phone or computer. Simply plug into a card reader and move your documents or photos to the card offering you more storage.

Bought the 128gb micro-SD card when I happened upon what looked to me to be a darn good deal, one of those short-lived pop-up sales that was almost half off. This has been the workhorse memory card for me filming my son's team's baseball games. He typically plays in 2-3 games a day of each Saturday and Sunday in season, and this card can hold 4-6 full two hour long game videos for each of two weekends before I need to do a data dump and start again the next weekend. Never a failure, always works first time and never any issues with bad sectors and lost data even after using it for almost a full year so far. I keep my eyes out for another similar sale because I am hooked on this card. Would I buy it again -- you betcha !!

Es una memoria de clase 10 con una velocidad de 100 Mb/s u viene incluído un adaptador y según el instructivo bes aprueba de agua, temperaturas,magnetico ( eso es importante para que no se nos dañen los archivos) y aprueba de rayos x y también dice el instructivo que los 64 GB dan960 minutos full HD16000 MP3 canciones26508 5mp imágenes352 horas mpeg-4Bueno una sola cosa de todo eso.

Received a few days ago. Much more storage on my phone. I'm happy. More room for taking pics, a hobby of mine. I may upgrade to the larger size. It truly has been a great item for me.

Esta perfecto muy buen material