The PSP supports any brand of Memory Stick Duo. It supports the standard Duo, Pro Duo, and Duo High Speed, with or without MagicGate technology. Currently the largest available size is 4GB (4000MB), with a 8GB (8000MB) card planned for the future. It is recommended to use either Sony or SanDisk Memory Sticks.
What Memory Card does my PSP support?
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