Sony 4GB High Speed Memory Stick Pro DuoGet professional quality digital storage for your compact digital device with the MSX-M4GB High Speed Memory Stick Pro Duo media from Sony. With a total storage capacity of 4 gigaabyte and an available capacity of 4 GB, it`s ideal for capturing high resolution digital photos and high quality video. Its high speed feature allows it to read and write data at speeds up to 80 MB per second on enabled devices. The MSX-M4GB is backwards compatible with most devices that use standard Memory Stick Pro Duo media. With the included adaptor it can be used with most products that support Memory Stick Pro media.