The adapter is for fitting your Duo card into a regular size Memory Stick slot. Mainly found on older Sony devices. Though it's also useful for card readers. To use, just insert the card into the adapter, and then the whole thing into an aforementione

To use the Memory Stick Duo with the VAIO computer, the Memory Stick Duo adaptor must be used. Note: 1. To use the Memory Stick Duo with the VAIO computer, ensure that the dedicated Memory Stick Duo adaptor is used. Inserting the Memory Stick Duo into the

This modification will allow you to use the Memory Stick PRO Duo on card readers that require an adapter. It's very helpful if you lost your adapter or don't have one. It may also work if you push the memory stick in until it reads it. But if not,