new flash drive not recommended?

just bought a new sandisk 16gb flashdrive that after configuring i'm getting the warning prompt about "performance issues".  what? i thought the xbox flash drive was essentially a sandisk...

what am i failing to understand?  i've tried 2 flash drives and one external drive, both had the warning.

 

Question Info


Last updated July 4, 2018 Views 3 Applies to:

Some Flash Drives may not meet all of the specs required by the Xbox 360, hence the need for the test. If the test fails, we'd recommend trying another Flash Drive.

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I have a 16GB SanDisk SD card that I stuck on a USB reader.

It told me it did not meet specs but lets me format the 16GB USB.

The only thing I noticed is that saving to the 16GB usb is just really slow i have not had any problems so far other then slow saving times.

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