SanDisk has announced three separate capacity boosts. First, in doubling the capacity of the Extreme III Cards for professional digital photographers. Available in March, the new cards include the Extreme III 8GB CompactFlash for $560, the $200 2GB SD, and the 4GB Memory Stick PRO Duo for $420 green. The CF and SD cards both feature a minimum read/write speed of 20 MB/sec while the Memory Stick PRO Duo cards manage 19MB/sec minimum read and write speeds. Likewise, SanDisk also announced a capacity doubling 2GB SanDisk Ultra II SD Plus Card (pictured) due in June for $135. Lastly, SanDisk announced their high-speed 4GB Ultra II Memory Stick PRO Duo card available in March for $240.