The new xD-Picture Card is the smallest storage format of its kind on the market - comparable in size to a penny, measuring just 0.79'' x 0.98'' x 0.07'' and weighing less than one-tenth of an ounce - with the potential for up to 8GB storage capacity in a single card .In addition, the xD-Picture Card was designed with fast read/write capabilities for smooth digital camera operations. A 16 or 32MB card can record data at 1.3MB/second. A 64MB card or higher can record data at 3MB/second and both offer a read speed of 5MB/second. The card was also designed to minimize power consumption, saving battery life. Now that you have a camera employing the most compact and fastest removeable memory format - you'll want this convenient card reader inserted in the PC Card slot of your Windows or Macintosh laptop. Using the Card Slot Adapter eliminates drain on your camera's battery, and if you have a second xD-Picture Card you can even continue capturing images while you downloading!