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We bought this for our new Sony A300 and it works perfect. It was a great deal for the size and the price and we have not had any problems with it.
I bought several of this card, this time I got 2 and 1 did not work, some time it accept data, some time it doesn't. A reliability issue.or just a bad luck.Generally this brand is ok for the price but if the quality is dropping, is better to put more money and get something that work 100% of the time.
A simple benchmark test using the HDTune benchmark program indicates an impressive 21Mbps READ rate using a USB 2.0 card reader. This card may have some interesting uses in the future. The x refers back to the data rate of a traditional 2 channel audio CD running at 1x speed which works out to be 150Kbps if you do the math.
I also tested WRITE speed using a 100MB data file and it took 4.5 seconds to copy which is also very fast. I'll have to get a card reader with a IEEE1394/Firewire interface to be able test a card that fast. The card may be faster but that's the max speed supported by the USB 2.0 port on my computer.
So if their specs are accurate it can go up to 150Kbps x 266 = 39.9Mbps. My previous card (which was expensive at the time) only runs at 4Mbps. According to the Transcend specs it can operate up to 266x.
I also observed that it's detected as an IDE device on compatible systems, not just a flash drive.
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