M2 Memory Stick Micro memory card is designed to meet the growing storage needs of multifunctional cell phones. It is compatible with all M2 slotted phones as well as all Memory Stick Pro Duo slotted devices when used with the included adapter. Specifications : Capacity : 4GB storage Minimum write speed : 15 Mbps Can be written to, erased and reused thousands of times without loss of quality. Dimensions (L x W x D) : 0.59” x 0.49” x 0.05” Operating temperature range : -25°C to +85°C Comes with a Memory Stick Pro Duo adapter. Compatible with the following Sony Ericsson models : C905a, Equinox, K530i, K610i, K770i, K800i, K810i, K850i, M600i, P1i, P910a, TM506, W350a, W518a, W580i, W760a, W810i, W880i, W900i, W910i, Z610i Note : Please make sure... Less