Oroginal SONY MEMORY STICK PRO DUO 4GB Specification: Total Storage Capacity: 4 GB 2GB 1GB Interface: 10-pin Serial Memory Stick?Interface and 4-pin Parallel Operating Voltage: 2.7V - 3.6V Power Consumption (Parallel): 100 MA (Max.) Power Consumption (Serial): 65 MA (Max.) Minimum Write Speed: 15 Mbps on Memory Stick PRO?enabled devices with 4-pin parallel inteface Dimensions (Approx.): 0.79" x 1.22" x 0.06" ( 20mm x 31mm x 1.6mm ) Weight (Approx.): 0.07oz ( 2g ) Operating Temperature: -13?- 185?F (-10.56?- 85?C) Description 4 GB /2GB /1GB maximum storage capacity, Minimum write speeds of 15 Mbps on Memory Stick PRO enabled devices optimized with 4-pin parallel inteface Operating temperature range of -13?F to 185?F allows increased durability Perfect for digital photography and compact video Backwards compatible with Memory Stick PRO?media enabled devices Compact, lightweight, and very portablex we also have the psp pandora battery and new white pandora battery,high qulity ,good serive, qickly deliver Welcome to here!