Both Lexar and SanDisk are rolling out 16GB cards in their performance CompactFlash lines, though each company has taken a different approach to introducing the new capacity to the market. Lexar this morning has announced the Professional 300X 16GB and intends to ship it later this month, while SanDisk quietly began shipping the Extreme IV 16GB (45MB/s) card in August, but has yet to announce its release (SanDisk has simultaneously revved the other available capacities in its Extreme IV line from a speed rating of 40MB/second to 45MB/second). We have initial test results from both company's new 16GB offerings.

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