Average Rating:

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Xbox 360 512MB Memory Unit (Xbox 360)

from: Microsoft

April 20, 2007
It's a memory card that lets you save your progress and profile. I can get 5 or 6 arcade games on here that can be transported between my XBoxes (does not work with Sega Vintage Collection games, eg. Sonic).

But, it is still just a memory card. Why it should cost so much to fit in a proprietary slot remains a mystery. More overpriced hardware by MS.