Introducing the SimpleTech ProXTM, with XcellTM Technology. With a write speed of 4 megabytes per second, the ProX reduces wait times between shots, so you can get more images and capture your vision - the instant it happens!
Engineered to optimize camera performance, the ProX is twice as fast as standard cards. And the ProX provides high-speeds for all digital cameras and doesn't require any software upgrades to the camera.
Multitasking Technology enables fast, sustained write performance by allowing concurrent read, program and erase operations to multiple flash media integrated circuits.
Internal Direct Memory Access (DMA) allows instant data transfer from the buffer to the flash media, which eliminates microcontroller overhead associated with traditional, firmware-based approach.
Wear Leveling increases longevity by spreading the digital flash data writes across least used memory address sectors.
Power Management Unit (PMU) minimizes power consumption by putting circuitry that is not in operation into sleep mode, saving valuable battery power.

SimpleTech ProX Compact Flash 256MB Card Shipping Rating & Reviews