I use this card in my 2009 Nikon D60 D-SLR camera. It works beautifully and in terms of capturing continuous photos (without Active D-lighting enabled) it is quick.
However, when uploading the photos to a PC, it only comes through at about 8.5Mb/s (with Windows 7). This falls shourt of the 10Mbps I was expecting. In fact, I was hoping for more like 15-18Mb/s - but not so.
However, in context, my Sandisk Extreme III 4Gb 30Mb/s Edition card only uploads at 10Mb/s so it isn't that much slower. Perhaps I should do an experiment with a known upload size to measure actual performance.
However, this is an indication of the PC's poor card reader and not the card itself. As pointed out by another reviewer, the transfer rate is dictated by the hardware you computer has, and I know this card is quick because of the way it can take large, continuous photos at 3 frames/sec.
On a recent trip to Brazil, where I photograhed around 1800 medium and high resolution pictures, the complete upload time wasn't a major problem - less than a couple of minutes I think.
All in all, I'm very pleased with it and I'd be happy to recommend it to anyone. This card is fast and capacity-wise, enormous. 8Gb is good for over 3500 photos at 5.6Mp and Normal compression with a Nikon D60.
Nikon D60 Digital SLR Camera - Black (AF-S DX Nikkor 18-55mm f/3.5-5.6G VR)Transcend 8GB SDHC Class 10 Memory CardN. Hunter, Littlehampton, West Sussex.