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Source 4 Port USB HUB with SD Card Reader Adapter for Playstation 3 PS3 Slim Charge on m.alibaba.com
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Amazon.com: Car Camera Mini DVR with SD Card Reader, SD Card Real-time Digital Video Recorder for FPV Camera Hi8 Camcorder DVD TV Box MPEG-4 CH1 : Electronics
![What were these memory slots used for? Obviously memory stick duo was for psp, but what about the SD and CF ones? I didn't even know what CF was until now : What were these memory slots used for? Obviously memory stick duo was for psp, but what about the SD and CF ones? I didn't even know what CF was until now :](https://preview.redd.it/what-were-these-memory-slots-used-for-obviously-memory-v0-davm81rvadva1.jpg?width=640&crop=smart&auto=webp&s=590f2e7461b653e3c6597f4fe2639a064155cd26)