Pros: - Lots of space
- Unique SD card adapter, not going to lose this like all the black adapters

Cons: Not super fast, but it's ok for me though since I mostly store backups of my phone with TWRP and general pictures. Still wish that there would be u3 micro sd cards, but I would almost always choose capacity over speed.

Other Thoughts: Overall I would buy this again, unlike cheaper cards it has slightly faster write speeds (14mb/s vs 18mb/s) which is what matters in the end. With 10 year warranty I am not too afraid of card failing. Data loss could be bad but most of the card is filled with Roms for my phone which don't matter anyway. If you don't need this much space, get a 64gb u3 micro sd.

Pros: TONS OF GIGABYTES, TINY FORM FACTOR, DID I MENTION TONS OF GIGABYTES?

Cons: NONE!

Other Thoughts: Don't be a cheapskate when it comes to memory, remember what your using to store on these chips, if they are not quality made chips you will suffer in the end when you have a data loss situation.

Pros: 128 GB on my galaxy S5, fast and reliable.

Cons: None so far.

Pros: - fast
- fast in exFat R/W
- fast in Fat32 R/W
- easy to spot (white/orange)

Cons: None

Other Thoughts: Nice card, fast writes under exFat and Fat32 filesystems.

Fat32
Warning: Only 122590 of 122591 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 19.9 MByte/s
Reading speed: 40.8 MByte/s
H2testw v1.4

exFat
Warning: Only 122590 of 122591 MByte tested.
Test finished without errors.
You can now delete the test files *.h2w or verify them again.
Writing speed: 19.9 MByte/s
Reading speed: 40.8 MByte/s
H2testw v1.4

Works well in my dashcams. Some SD cards of other brands get super slow under Fat32, but not these.

Bonus is that these cards and adapters are not black, easier to spot.

Pros: I didn't test the speed, but it seems to go fast enough for me. I have it installed in my Samsung Galaxy Note 4. I have put a number of movies and TV shows on this card and I haven't even filled 25% of this huge card (starts at 120 GB). I have also taken a number of photos & video and it doesn't seem to slow it down (photos = 16MP, 5312x2988 pixels) (video = 2160p@30fps, 1080p@60fps).

Cons: none so far

Other Thoughts: I just hope it lasts. I have had problems with other microSD cards (different brands) failing in the past. I have only had it just over a month.

Pros: Samsung makes good memory products. Decent read speed of around 44MB/s, but I purchased this over the PNY because of higher write speed.

Cons: Write speed is less than half of what was advertised. I only managed 21.6MB/s write speed. Disappointed I chose this Samsung over the PNY, as that one has around 18MB/s write speed, but with a read speed of 60MB/s.

Other Thoughts: If I knew the write speed was going to be the same as the PNY 128GB microsd, I would haven purchased that one instead since it was cheaper and had faster read speed.

Pros: So far so good. I purchased this for its capacity, not its speed. Read and write speeds are quite sufficient for my Surface 3 tablet. Accepts encryption without any problems.

Cons: None to speak of.

Other Thoughts: Why do you always receive a SD adaptor with a Micro SD card? I have never had a computer with a SD slot.

Pros: High capacity / lot of space

Cons: Stop working after 3 months. And before that I had performance drop on sustain writing and a lot of writing error (corrupted picture ect.) Saddly I didn't used it a lot the first mounth so when I found out it was to late the exchange it so need to deal with samsung... And what can I say about there custumer service..... They offer a 5 year warranty but try to make them respect it; specialy when you can't speak english....