Flash memory cards have become mainstream. Practically digital cameras, PDAs and higher end cellphones all use them. It is the ubiquitous removable media standard in gadgets. However, as the old saying goes: the nice thing about standards is that there are so many to choose from. We have CompactFlash, Secure Digital, MultimediaCard, SmartMedia and more. With so many standards in the market, there emerges the need of multi card readers, or commonly marketed as the n-in-1 card readers.
At first there were 4-in-1 card readers which has four slots for CompactFlash, SecureDigital/MultimediaCard, SmartMedia and MemoryStick. The 4-in-1 name seemed to be clever marketing at that time. It told people that with this reader, it was not required to buy separate reader for each kind of flash memory.
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