Silicon Power 64GB 10-Pack Superior Pro Micro SDXC UHS-I (U3), V30 4K A1, High Speed MicroSD Card with Adapter

I am always looking for a deal, but it must be of quality also. I’m usually very thorough in my investigation of things but, I do fail myself sometimes. I am not overly content with this micro SD card but, It’s not at all the fault of the card or the maker. I mean, it’s working as it should and I Hope it continues. No, it’s the fact that I didn’t read and understand the information correctly. It clearly says it “Reads” up to 85MBps. I simply didn’t realize it said READ only. Being that the READ rate is often 2,3, or even 5 times or more than the WRITE rate, which is the true measurement when you’re transferring files. I was a bit frustrated when I saw this thing writing at 9MBps to 14MBps. People seem to be happy with its longevity so, I will be happy to keep it and Know, when I need to transfer big files, to bring a lunch. Haha! You never know, if it lasts and the price is right, I may buy another in the future. I just Really like to get things done quickly. Especially when I Know I can easily have that technology to save precious time. I will promise this, if it handles a great deal of work, over a long period of time, I will be back to tout it, as I will be back to inform of a fail. I only ran it a couple of tests and it’s in a camera now. Hopefully it will perform better on its next test. So far though, it works fine and the only reason why it’s only receiving 3 stars, is because I don’t like a slow drive but, as I’ve stated at the start, it’s Not their fault. It’s exactly what they advertise and for honesty, they get 5 stars, Always. I hope this helps you!

Purchased a 2 pack of Silicon Power 32GB "High Speed" MicroSD cards with adapters for just under $10. I was mainly looking to replace my old card I've been using in my Raspberry pi for the past couple years with something "newer" but didn't want to spend a whole lot on it. Saw the set of 2x 32GB cards for less than $10 and thought that was the right price. I was a bit concerned with the card since they were labeled as being "old" and the packing sure did look like it was the most current design I've seen at the stores, but those fears ended up being unfounded.One card got immediate used to re-flash my Pi with the latest Raspian, and the Pi3 has been running just fine. No hiccups or complaints from the OS when it was first booted up. Has been running none stop crunching data for the past couple days and the card seems to have held up just fine.As for the "Read Up to 85MB/s" claim made in the package, I'm not too sure what they were talking about. Fine print in the back says the speeds are "based on USB 3.0 UHS-1 card reader" but rate may vary depending on hardware. I plugged my card directly into my PC's Rosewill Multicard reader (Amazon Product code# B007YDJJFS) that's connected to my PC via a USB 3 connector, and I was only seeing 18 MB/s using AJA System Test App. Setting were set to a reasonable level, 512MB 1080p HDV mock file. I tried it a 256MB 720p 16bit mock file and got similar results, ~18MB/s. I'm not concerned about the read/write speed since the card is not going to be used for anything too sensitive to latency, but felt like it was worth mentioning.Overall, I'm happy with the 2x 32GB cards for under $10, I thought that it was a reasonable price for a decent set of cards.

This review is for the two pack of 64GB cards. Packaging is good and similar to other cards with included full sized sd adapters. Performance wise they are similar to Samsung EVO Select (U3 rated) and Sandisk Ultra (U1/A3 rated) of the same capacity I've tested.Sequential R/W was about 93/60 MB/s. Rated speeds are slightly higher at 100/90, the difference could be due to my card reader, regardless I'm satisfied with this. Random access was slower as expected with reads > 6MB/s and writes > 2MB/s, similar to other A1 rated cards I've tested. Many non A1 rated cards are much slower on random access, with writes speeds sometimes less than 0.1 MB/s.These should work reasonably well in most applications including those that have a fair amount of random access such as smart phones and single board computers like the raspberry pi.I can't speak to longevity yet, but other Silicon Power sd cards I have are still running fine after years of regular light usage.

Buyer beware; the listing says it's a two pack, which would lead you to assume you're going to get two microSD cards, but in reality you'll get one microSD and one adapter.

All I can say is wow. I use the cards in my security cam and have never had any problems in the 4 or so months I've had them. The reason I say wow is because of a product test I accidentally put one through. I dropped one off the balcony and lost it into the snow. Couldn't find it no matter how hard I looked. Figured come spring it would be no good. I was wrong! It spent about a month and a half outside. I found it the other day now that the snow is gone. To my surprise not only did it work but the data was still on it and intact.So all in all I'm happy. Well worth the price.

Check latest Tomshardware review for microsd cards on june 2020This card performs amazingly at the same level of my expensive sandisk extreme pro and sandisk extreme on Raspberry pi 4 4gb and Rpi 4 8gb running raspbian 32/64 bit, manjaro 64 bit 20.06, ubuntu-mate 20.04 and TwisterOS 1.3.They seems reliable so far, I've been using them generously.However, if you own an odroid product like Odroid-N2 or Odroid-C4 and you want to install it on official ubuntu 20.04 and 18.04, please do Not buy this. They are somehow incompatible with those hardkernel products. Maybe they are A3 class micro sd cards, it does NOT say. I almost RMA my Odroid-C4 thinking there was a defective SBC board I got. Also, if you are going to use Armbian on C4 and N2, same issue, same story.Worth to mention, surprisingly they worked just fine on latest coreelec for C4.Remember if you are gonna reuse them, always use "SD Formatter" before flashing(burning) a new image into it, SD Formatter is a free software available for windows and mac.

Excellent value for the money, fast read and write and reliable. Dictionary defines sheerness as steepness or perpendicular so it has many of those too I am not sure how that relates to a microSD card feature asked to be rated here. I use it in a dash cam that is constantly exposed to high ambient heat and humidity and it has worked flawlessly. I would definitely buys these microSD cards again.

Used just one for now, but it was immediately recognized in a surveillance camera that killed a no name Chinese contraption.32GB does not impress anyone these days, but at least it comes from a name brand and despite lackluster performance, I expect at least durability.

Bought it for my 2 channel FHD dash cam. I really didn't need U3 rated or expensive MLC for just 1080p loop recording. This affordable 3D TLC NAND should be good enough for daily write-intensive workload.Note: It seems to be thinner than my other micro SDHC/SDXC cards. You'll have to take extra caution when handling it.