Samsung - PRO+ 64GB microSDXC UHS-I Memory Card

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.