![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)
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 :
![Has anybody ever actually used the card readers on the PS3? I've owned this thing since 2008 and never once have I ever used them. : r/PS3 Has anybody ever actually used the card readers on the PS3? I've owned this thing since 2008 and never once have I ever used them. : r/PS3](https://i.redd.it/0l8hjzprbo691.jpg)
Has anybody ever actually used the card readers on the PS3? I've owned this thing since 2008 and never once have I ever used them. : r/PS3
![What happens if the PS2 to PS3 memory card adapter is connected to a PS3 that's NOT backwards compatible? : r/PS3 What happens if the PS2 to PS3 memory card adapter is connected to a PS3 that's NOT backwards compatible? : r/PS3](https://preview.redd.it/what-happens-if-the-ps2-to-ps3-memory-card-adapter-is-v0-he4gl9jpwwd81.jpg?auto=webp&s=a84c4f56e5a801f3e1aec95fc24fd41b97e0ee7b)