Delkin on Friday claimed to have the fastest-ever memory cards for high-end digital SLRs such as the Nikon D300. The storage maker's 16GB CompactFlash Pro uses the Ultra DMA bandwidth technology made available by some newer devices to achieve an unprecedented 305X speed rating, just topping the 300X record set by Lexar with enough speed to sustain 45MB per second regardless of the conditions.

The CompactFlash card also serves as removable external storage when paired with a supporting UDMA reader over ExpressCard, FireWire, or USB. It ships today for $400 and is accompanied by smaller UDMA cards ranging from 1GB to 8GB at prices between $60 and $250.