4GB Sony MS pro duo high speed for free reader

Memory flash: 4 GB
Available memory: approx. 1.89GB
Operating voltage: 2.7 V - 3.6 V
Average operating current: max 65 mA (serial transfer); max 100 mA (parallel transfer)
Standby current: max 1.5 mA
Maximum parallel transfer speed: 160 Mbps (20 MB / sec)
Minimum write speed: 15 Mbps (when combined with optimised Memory Stick PRO(TM)-compatible devices)
Dimensions (W x L x T): approx. 20 x 31 x 1.6 mm
Weight: approx. 2 g
Environmental temperature: -25c to 85c non-condensing

This product is compatible with
Sony: PSP
Sony Ericsson: D750i, K750i, P910i.V800,W800i.W810i.Z800i,etc