SanDisk's Extreme IV range of CompactFlash cards now includes a 16GB card as well as faster transfer speeds throughout the line-up.

The series has received a 12.5% speed boost up to 45 megabytes per second (MBps).

And SanDisk has also added a 16GB card - which is twice the previous highest capacity.

The Extreme IV CompactFlash memory cards are compatible with all CompactFlash cameras including the latest UDMA-enabled cameras.

Following on from testing with DSLRs including Nikon’s D300 and D3 cameras, the Sony Alpha A700, and the Olympus E500 and E3 cameras, SanDisk claims: "Depending on the camera used, the increased performance of the SanDisk Extreme IV memory card line may help reduce the delay between shots, enabling photographers to take more photos overall".

The Extreme IV cards also a lifetime limited warranty and hold the industry’s widest guaranteed operating temperature range, from 13F (minus 25C) to 185F (plus 85C).

The 16GB SanDisk Extreme IV CompactFlash memory card is available now for $399.99.