NAME: Memory Stick Memory Stick Pro/Duo Product details:1) Memory flash: 128M-8G2) Available memory: approx. 1.89GB3) Operating voltage: 2.7 - 3.6V4) Average operating current: max. 65mA (serial transfer), max. 100mA (parallel transfer)5) Standby current: max. 1.5mA6) Maximum parallel transfer speed: 160Mbps (20Mbps)7) Minimum write speed: 15 Mbps (when combined with optimized memory stick PRO (TM)-compatible devices)8) Dimensions (W x L x T): approx. 20 x 31 x 1.6mm9) Weight: approx. 2g10) Environmental temperature: -25~85°C non-condensingThis product is compatible with: 1) Sony: PSP2) Sony Ericsson: D750i, K750i, P910i, V800, W800i, W810i, Z800i Note:1) Memory storage capacity: varieda) A portion of the memory is used for data management functionsb) Actual available memory: 32MB=30MB, 64MB=61MB, 128MB=123MB,256MB=220MB, 512MB=460MB, 1GB=940MB, 2GB=1.85GB, 4GB=3.66GB2) 80Mbps read and write speedsa) Measured by Sony under optimized conditionsb) Speed varies by usage conditions and devices used, which requires compatibilitywith high-speed parallel data transfer interfaces3) Memory stick media backward compatibility