Specifications Dimension 0.43" x 0.59" x 0.039" (11mm X 15mm X 1mm) Weight 2.0 g 5%Operating Temperature13 F to 185 F (-25 C to 85 C)Storage Temperature40 F to 185 F (-40 C to 85 C)Approximate 30MB/s in reading and approximate 20MB/s in writing speed. Transfer speed is about 4 times faster than the Memory Stick (R) PRO Duo. Speed varies upon the measurement conditions Memory Stick PRO-HG Duo HX is ideal for high-speed data transfer and for continuous shooting You can take up to 180 large JPEG photos per minute