Amplim 64GB Micro SD Card, 2 Pack MicroSD Memory Plus Adapter, MicroSDXC U3 Class 10 V30 UHS-I Extreme High Speed Nintendo-Switch, Go Pro Hero, Surface, Phone Galaxy, Camera Security Cam, Tablet, PC

Horrible!Once this microSD card gets beyond half full (say almost 2/3rds) the performance of this microSD card absolutely tanks.with 70GB filled out of 120GB, my write speeds started averaging in the kb/s instead of mb/s. Below is an image of a performance test I have just run with the SDcard. It's essentially unusable for any OS to store, read/write data to/from. I'm returning this thing ASAP.Some people will say it may just be my PC. I tested this across 4 different PCs. All had the same results.

I use this card for my GoPro 6 and it's been recording 4k Video, 24fps and 30fps as expected, without any issues or without any fails. I bought two of them, but with the capacity, rarely have to swap them out. With 4k 24 or 30fps, I get approximately 4 hours of video out of each 128gb card. Now that I have exerpeinced this brand, I don't feel I am willing to take the chance on another brand. I also love how they sent an email to check to ensure that everything is good, right after my purchase. The adapters that come with the cards are really nice and I use them to store my cards in when they are out of the camera so I don't lose the tiny cards. I did try 4k 60fps and it recorded fine, as well.Advice: When you get the card, you will want to format the card in the camera or device before writing anything to it then do a test run of shooting videos and transferring them. You should do this for any card you buy, actually.

Let me start off by saying, I didn't know this brand but after having multiple Sandisk sd cards fail on me, I need to find a better more reliable brand, and I think I've found it! I've been using this for a little over a month now. I constantly am inserting and removing it from my device and so far no problems. Speeds are extremely fast! Great job! Highly recommend.

I bought the 2 x 64GB pack which I have received but other than the read/write test I have not used.The first picture is showing what I used to do the text. The card reader upper right is a USB 3 and is quite quick.I used a windows 10 PC with a i9 9900k with 2080ti, etc so computer is also quite quick.To the second picture I notice I have them in reverse order thus first test one on the right.Right most was taking one of the micro-SD cards and inserting direct into the Kingston card reader.Middle is taking that same micro-SD card inserting it in the adaptor (top left of first pic) and testing to see if the adaptor would have any MAJOR effect on results (It DID NOT).Left most is the other micro-SD card again directly into the Kingston card reader.Now a couple thoughts have used many SD and micro-SD card over the years (along with SSDs in computer).1. When looking for a micro-SD card for things like Dash Cam or home security cams I think it is a good idea to look for a V30 on the card.2. I have seen (and it could happen with this card only time will tell) that the "lesser known" brands over time may see a CONSIDERABLE "fall off" in performance. So out of the box they work great, but months down the road they may be nearly "dead in the water".So in conclusion, out of the box these cards look great, but only time will tell if they continue to perform well.I think I'll put one in my dash cam and if I have a falloff in performance I'll be sure to let you know.

I just had to say this, not about the cards but about the packaging. This is the first time in my life that I've seen a "zip tab" thing pull out of the packaging like it was supposed to. Not only was there a long tab to pull and remove, but then you were supposed to pull the entire back of the packaging down and it was supposed to zip right open. And IT DID. I'm well into Medicare, and this is the first and only time in my life I've seen a package so well designed and was actually easy to open. Kudos to Amplim for taking such great care in their product.Oh, and the microSD cards worked great, too!

Ordered a 128gb Micro SD Card for my DJI Phantom 4 Pro and I tried numerous times to make it work but it never did. I Formatted the micro sd card a lot of times but that didn't make an effect. my Phantom drone could not read it, it kept saying card error. Then I tried it on my Sony 4K action camera and it worked fine, so I don't know maybe my phantom 4 Pro can only support no larger than 64gb Micro SD cards. overall good quality card, very well made.

Not happy at all. This clearly states it is compatible with the kids Fire tablet and it is NOT. I wanted this in time for my son's birthday but we put it in the tablet and it is not compatible. It is absolutely false advertising and it's ridiculous that this shows up on search results for Amazon kids tablets micro sd cards when it is not compatible at all.

Edit: Many errors, destroyed my data, and is now completely dead. Don't buy this junk. Bought this for use in a GoPro Hero 5 Session. It glitches occasionally, rendering the footage blank & unusable. For this reason, I'm not certain it lives up to it's claims of throughput. It works just fine for all but the most memory-intensive landscapes I travel through at the highest speeds, and that's an acceptable compromise for me, at the cost savings.

Good product ideal for a mobile or camera etc.

From day one My camera showed error “memory card not found” very often, after awhile I couldn’t use it at all as the error was constant.

Si me gusto, pero el mavic air no lo reconoce como de alta velocidad

Good value

exactly as advertised