The drive can be used for the 4GB XBOX360 but it does not meet the required performance criteria. Even though the xbox was telling me that my flash drive was slow I have tried it and kept it on the xbox with no major issues so far. You will notice though slow write times for saving/moving games and on a few occasions it seems that games would not respond as they should. However, I did pay for it $15 as it was on sale for a short period of time and I am overall happy with it. If you are planning to pay full price for it seek something else.