Excerpt: This is used in a quadcoptor for storage of video. It works well for the storage and the adapter works well in the reader too. It feels a little delicate over some memory but I've had no problems with them so far
Summary: Guess I got what is claimed, "Up to 45MB/s". Tested with Atto Disk Benchmark v2.47. I got peak read speeds of 35MB/s (64K to 8192K Transfer sizes) and a max of 14.75MB/s write speed at 2048KB and 4096KB transfer sizes. Interestingly, the write speed was less below and above those transfer sizes.
Summary: I'm using this in my Sony AS-10 Action camera. I was particularly attracted with the advertised write speed on this card since the old 16gb class 4 card I am currently using causes the camera to create a lot of artifacts resulting in dirty looking footage.
Summary: Can't ask for much. It works. I think my other HC-I ran faster, though. I moved a ton of data onto this so I could have more space on my phone but still have space. It had slower write speeds than I hope for, but they were still really fast.
Summary: Like Peter I bought a 32GB capacity card for (Witch I also recommend) It's been working well for me. I had tried a few other brands first and they had caused the camera to display memory card errors, but the Transcend card is doing well so far. Also seems to do well in my Samsung phone.
Summary: Thanks to the reviews that some others posted, I wasn't expecting a wildly fast write speed, and indeed the write speed on this is pretty average. It seems to be a good product, and it works fine for my purposes (shooting raw with a dSLR), but don't be too enchanted by the prospects of extreme...