Customer Ratings & Reviews

My benchmark: CrystalDiskMark 5.2.1 x64 with USB 3.0 Kingston FCR-HS4 Card Reader (Average of 5 runs, 1GiB data): Lexar 6333x 64gb, 91.85 MB/s Read, 18.45 MB/s Write, 7.93 MB/s Read 4K, 1.12 MB/s Write 4K Sandisk Ultra 32gb, 45.72 MB/s Read, 11.95 MB/s Write, 5.46 MB/s Read 4K, 2.08 MB/s Write 4K Samsung EVO+ 64gb, 92.47 MB/s Read, 45.51 MB/s Write, 9.21 MB/s Read 4K, 2.31 MB/s Write 4K Samsung PRO+ 64gb #1, 92.06 MB/s Read, 84.72 MB/s Write, 7.46 MB/s Read 4K, 2.93 MB/s Write 4K Samsung PRO+ 64gb #2, 91.86 MB/s Read, 84.10 MB/s Write, 7.35 MB/s Read 4K, 2.91 MB/s Write 4K Samsung PRO+ 64gb #3, 92.48 MB/s Read, 84.51 MB/s Write, 7.28 MB/s Read 4K, 2.91 MB/s Write 4K Note: Any of these cards should be overkill for recording 1080p30 w/ Audio, as well as 3820x2160, 30 Hz w/ Audio (5 MB/s) Based on these results, we can see that the sequential write is fantastic on these PRO+ cards, in addition, random 4K performance is slowly lower than the EVO+ card I had. The reason three cards are there is because I bought 3 separate PRO+ cards. I'm only going to take one star off my perception of this card because of the high price.

Got this card for a good deal. Works great in recording 4K content.

I got this for my GoPro Hero 4. This works perfectly recording any video and taking pics. I don't see any lag or hiccups. Hands down the best SD card in the market. Get it when its on sale. I want to say I got it for $30. You can't beat that.

Got this for a Samsung camera that shoots 1080p video. The card has the right speeds for that, stores a ton of photos and videos and is superfast. Great price too.

Works AMAZINGLY! Love it and do recommend it. I use it in my tablet and you cannot BEAT THE PRICE FOR PERFORMANCE. This same product specs in some other name like Sony or anything else with 95 read and 90 write speeds and capacities you'll pay 99.00 and I paid at best buy 38 - way cool - now i'm going to buy the 128k to hold all my movies on my tab and pick up an extra one for my laptop. !!! 5 STARS FOR PERFORMANCE, FOR PRICE ABSOLUTELY BUY THIS PRODUCT! THANK YOU SAMSUNG!

had samsung micro sd pro 64gb prior to this and used as secondary drive on surface pro. this product came out and decide to try as this had boost in speed. impressed with transfer/read/write speed. wish it came in bigger size as 64gb is on the smaller side as they have 128/200gb sizes available at lower speeed

Bought this after trying out a UHS1 128gb Sandisk Microsd. The Read and and mostly Write speeds on that were high, but very inconsistent. I bought this and it has worked flawlessly. Tested the speeds via computer and saw very close results as expected and have been using it as an INTEGRATED memory in my Android 6.0 Marshmallow phone. I see no lag when using it to boot apps and such that aren't required to be on my regular 16gb internal memory.

A good, fast card. While I was unable to get the speeds advertised, I came close - approximately 88MB/sec read and 84MB/sec write. However, I know that different readers will often vary slightly in their USB 3.0 speeds. I only tried the card in one reader and I have no problems with the manufacturer's specs. I would definitely recommend this card.

After comparing specs and reviews for microSD cards, this manufacturer and product stood out for sheer speed and reliability. The price point was (past tense) unreal, so I snapped up several for myself and recommended it to friends and relatives. Downloading app data ( offline maps) to my phone was blazingly fast, 4+ times faster than the EVO+.

I was looking for a fast memory card for 4k video recording and for fast buffer clearing on a mirrorless camera, After reading many online reviews that said this card was one of the fastest and most reliable on the market I decided to give it a go. Now that I've used this card this series will be the only mem cards I buy!

I got this SD Card for my Nvidia Shield TV (amazing btw) and have not noticed any difference in speed/loading times of all the programs I moved to it. If the price wasn't so high (justifiable) than I would always buy these cards as they really are amazing on read AND write speeds!

This is one of the best cards I have owned so far for speed and price ratio! This card is perfect for using in my 4K camera and no matter what I take video of, I have zero problems! If you grab this card on sale than this is the card to beat in price to performance ratio.

Read the reviews about this microSD card and others. Someone else did the comparison chart homework. This card was right up there with Sandisk Extreme Pro in read/write specs. I use them in my GoPro cameras for recording HD videos. No problems.

Bought for my surface 3 and 4 and had no issues, its fast, immediate reads and writes, no issues or complaints. says its more durable we will see over time. no complains except the cost but that is expected for this size drive

I bought this to use in my Surface 3 as extra storage. This card is much faster than the previous ones I have purchased. Still a bit expensive for flash media, but a good price compared to other cards in its speed class.

Works great with my HTC smartphone. Transfers data really fast. I use it for music, pictures, and videos. It can handle taking 4k videos. 4k uses up the storage space quickly though.

I am using this Samsung - Pro+ 64GB microSDXC Class 10 UHS-1 Memory Card in my Samsung Galaxy Tab 4 10.1in. And I have had no problems with it. I previously had a Samsung Evo 64GB microSDXC Class 10 UHS-1 Memory Card however that card failed within 1 month. Though that may have been the fault of my Speck brand tab case. Which I believe put to much pressure on the memory card slot. I have since modified my Speck brand tab case by notching out the area that covers the memory card slot. As I have previously stated I have had no problems with the new Samsung - Pro+ 64GB microSDXC Class 10 UHS-1 Memory Card. Everything is working great now.

i needed to buy new memory for my phone and decided to buy this one since i have note 4. i did alot of research before i purchase it. i hook it up and it work great

Card was nicely priced at a sale price and holds lots of videos. It fits into samsung tablets and expands the on-board memory easily. The card also has a warranty.

Email flash deal. Awesome price. Plenty of storage for my wife's Kindle Fire Tablet. She likes playing the casino slot games and some of those apps are big files.