This is an excellent SDHC card to have, fast and very reliable. I have used Transcend SD cards before and they are very efficient. Never had the problem of losing any data or pictures. FAIR WARNING THOUGH: MAKE SURE YOUR EQUIPMENT SUPPORTS OR IS COMPATIBLE WITH AN SDHC. READ YOUR OWNER'S MANUAL BEFORE SWITCHING TO THIS CARD. If you equipment is ONLY compatible with REGULAR SD (not SDHC), just stick with SD. Otherwise you might find out the hard way like I did. I still gave this card a 5-star because the compatibility issues was my mistake. This was compatible with my newer camera but not the card reader in my laptop and my older cameras.

I opened my Kindle, popped this card in and it has never come out. It shows up under "settings" in Kindle and I have had absolutely perfect performance from it saving Kindle books to it and reloading them to my Kindle. It was absolutely effortless to upgrade the Kindle memory with this excellent product.

My new camera called for a 2GB card. While looking for one, I came across this 4GB card and decided to order it instead. It has plenty of space for videos and loads of pictures. I am very satisfied with it.

this is one of the best HC cards on the market works flawlessly in my camera and my PDA and the transfer rates are impressive.

The 4 gb SD card does not work good I can not get the pictures off of it.
My computer does not read the card, can not format it.
I tried other PCs with no success. Now I am having trouble returning the card.