SanDisk ratchets up the speeds on its Extreme series

SanDisk has announced the world's fastest CompactFlash (CF) cards for professional photographers with its Extreme IV series. The new 2GB, 4GB and 8GB Extreme IV CF cards can deliver read and write speeds of up to 40MB/sec and can operate in temperatures of minus 13 degrees F to 185 degrees Fahrenheit.

The company also released a new Extreme FireWire 800/400 reader that is capable of handling the 40MB/sec read and write speeds of the new cards. And to prove that the 40MB/sec top-end is no joke, Rob Galbraith was able to put the new cards to the test and achieved some tremendous results:

Did we mention how fast the Extreme IV cards are at card-to-computer transfers? Here's a taste: the best CompactFlash cards on the market now are capable of real-world throughput between about 15MB-17MB/second in the best shipping readers we've tried. By comparison, the SanDisk Extreme IV 2GB, when inserted in an Extreme FireWire Reader, tops out at a whopping 38.6MB/second, with the Extreme IV 4GB weighing in at 38.4MB/second. These aren't synthetic benchmarks, but the actual speediness of Extreme IV when moving JPEG and RAW picture files to a Power Mac G5 here.

The 2GB, 4GB and 8GB SanDisk Extreme IV CF cards will be available this month for the price of $159.9, $319.99 and $639.99 respectively. The SanDisk Extreme FireWire reader will be available this month as well for $79.99.

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