SamsungEVO Select microSD Memory Card + Adapter, 128GB microSDXC, Up-to 160 MB/s, 4K UHD, UHS-I, C10, U3, V30, A2, for Mobile Phone, Smartphones, Nintendo-Switch, and Tablets (MB-ME128SA/AM)

I've used and tested several brands, and my personal opinion is that this SAMSUNG, although more expensive, is best for massive storage.....again, in MY opinion. Good luck to you.Like all memory products, it starts out expensive (~$50+), and just keeps getting cheaper.....and that's great for all of us. But I also like the many bytes I can record or transfer very quickly. That pertains to all manner of stuff, including 4K video. That's what I use it for, and so far I've acquired more than six of these 512 Gb USB's and I can't blame a single one for causing a major error. I keep looking for them, but there's been nothing that I can blame the device for. Knock on wood....and the fact they keep getting cheaper is pretty good too. When you duplicate as many bytes as I have, back and forth sometimes (I don't like fragmented files), and the byte count is still always exact -- for half a Terabyte, that's really good. I'm old school....but ain't digital great? I remember trying to do this 50 years ago (YES!) with analog.....and I was consequently very sad, a lot.NOTE: All's good, but to be specific, I really like the PRO version with the connected USB. That's great. And, I also re-format in NTFS...all I want is the memory for remote portable drive use. That's ME. That's all I want to say.--> all for NOW, that is. I have finally noticed how HOT these little 1 Tb guys really are......can't keep your finger on them when they're working and recording so fastI'm not saying this as a FINAL condemnation, because it MIGHT even be within tolerance for this thing. However, if it's ONE thing that I've learned after 38 years experience in electronics, it's that HEAT ultimately kills most failed electrical devices, big & small. I started with audio repair, and ended with programming excalibur and other fuze stuff for ARL. HEAT kills, sure, but I still will admit that it may not be so conclusive, after all. I've gotten more than 10 of these things and so far, they've worked very well, even ALMOST perfect, I must admit....NO MORE than a few bytes altered during transfer, with absolutely NO failure noted (I'm told by a computer repair owner that the memory will work flawlessly for a time, and ultimately will just give out all of a sudden--answer, use BACKUP! ).....but, I'm still thinking of clip-leading a little fan to come on every time I apply power to a circuit, or, maybe even getting a tiny little heat sink. I don't know. But I'm sure going to continue testing these things out......just be aware that 'heat kills', period. (I have to concede one thing....I haven't seen a failure yet, hot or not)MORE....Oct 24, 2024.....yes, it's more. And not a single failure with many hours of transferring, reading & writing ---with over a dozen of these big memories (1/2 & ONE Terabytes) being used a great deal, I cannot recall a single failure that was the chip's doing. Hot, yes, but NO failures. And, at most, while transferring a TeraByte of data, fragmented or otherwise, the most difference in the whole lot was no more a few bytes....and I kinda laughed that off. No problem. Also, last year I mentioned the 'defragging' of the memory during a 1Tb-to-1Tb session. I had a terribly fragmented chip that I transferred (yesterday), and it took about 3 1/2 hours, give or take, and AGAIN showed about 25 GigaBytes MORE memory available after the transfer for the new chip, with identical memory capacities on both. This is about what I reported before, so with the accuracy & acceptable speed (for me) the de-fragging effect made the copy faster by reading/writing faster afterwards, along with greater accuracy, now being sequencial..... if you can believe that. Thank progress for digital technology, because I remember the analog days very well. Same data, but much, much different results.By the way, the KEY to digital accuracy is called 'handshaking'', whereby at the eol (end-of-line) the byte-count is compared before advancing and denoting an ERROR if it is not the same. Other than that, it's just SPEED, which just keeps going up and up……the Japanese have affirmed, with cost no issue, that the internet could transfer 1000 movies per second, if they are correct, and I believe they are.FINAL edit....Dec 22, 2024.....This is so long now, I might as well add something I left out......the reason digital is mostly 'more accurate' than analog is primarily due to something called 'handshaking'', whereby at the eol (end-of-line) the byte-count is compared before advancing and denoting an ERROR if it is not identical. Other than that, it's just SPEED, which just keeps going up and up in digital land……the Japanese have affirmed, with COST no issue for conductors, that the INTERNET could transfer in the neighborhood of ~1000 movies per second, if they are correct, and I believe they are. Have you ever wondered why streaming seems to work so well?

In the previous year, I ordered one of these thinking it was official (no it wasn't) probably because I was on the wrong page. I ordered this one (from the correct page) back in November, and I'm glad to say it actually worked. Good storage and speed for my Nintendo Switch. It is also normal for larger capacity storage devices to have a few gigs knocked down, nothing to tweak about. If memory serves right, the 512GB card came at around 450-480GB, which at that point I didn't mind, since Nintendo Switch games don't take much storage anyway. Mine didn't arrive broken either, and it's still kicking.Overall, a great MicroSD card that can do what its supposed to do.

PETLIBRO- This is the memory card you need to get your PETLIBRO grannery smart feeder to record in on SD. This is the official recommended card from their customer service. I’ve tried the more modern faster Samsung but it didn’t work. I put many hours into it to figure that out. I did it so you wouldn’t have to. Again, this is the card. I’m using the the maximum 256gb version.

Does its job well. It's light years faster and smoother than the cheap sd card that came with a handheld device I got recently. Just this little card improved my whole experience with my device.Note: It says 128gb. After formatting you'll have like about 119gb usable storage because some is locked away so the card remains usable even at it's new lowered capacity. You're not being cheated though it's reasonable to want that space you payed for. If you really need that locked away 9gb after formatting, move up to the 256gb card.

My Rove R2-4K dash cam threw error code with my Sandisk High Endurance although other 4K dash cams have no problems. I decided to switch to this Samsung memory card. It is fully compatible and solve my issue. The video recording quality is great. Its capacity and recording memory is suitable for my need. It is easy to install and throw no codes at me.

Fit's my Samsung Galaxy A52Amazing plug and play functionality.Great to be able to store more video's and photo'sA little slow on the transfer speeds with big files, But that's fine. Great if you are just wanting more storage availability on your device.

Version: ‎MB-ME512SA/AMI couldn't test the actual speeds using this old device, but they seemed consistent when I verified actual capacity. If you just need reliable storage to backup your phone or transfer between camera/phone/laptop, this works great. The model and version I bought is the one that can go upto around 130-150MB/s. This is way more than my phone's camera can produce. A few years back this WAS the high-speed card. ;)

I bought this for my Samsung tablet as sometimes other brands do not work well with Samsung. I have had no issues. It was recognized by the tablet upon startup and has been working flawlessly. The price was right and is a good value.