Sony Pro Duo 2GB Memory Stick High Speed 2 Gigs 2G (+ Free Adapter and Calculator with every order) Powerfull 2 GB Storage Capacity with 1850 MB available. Comes with a free adapter stick and free Xerox Calculator with every order!!!!!! Great for all your digital camera and PSP needs plus more! Retail Package and Brand New! Designed to support read and write speeds of 80 Mbps on high speed enabled devices and is backwards compatible.