In this video, I discuss how I determine the actual write speed of the SanDisk Cruzer Glide 3.0 256GB flash drive given my usage requirements. I explain why the drive shows 50MB/second write speeds in some tests, but not all tests... the tests which match my usage requirements show a write speed of about 25MB/second.

The following link is to a youtube video presenting some very informative insights into flash memory manufacturers and how they choose and utilize resources toward making consumer-grade USB flash drives...

"30C3: The Exploration and Exploitation of an SD Memory Card (EN)"
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...the introduction to that other vid also provides a good brief high-level intro on some of the weak characteristics of MLC memory used in consumer-grade drives, weaknesses that hardware within the USB flash drives themselves helps overcome. This extra effort is part of what creates the overall read/write times of these drives.

Wikipedia article on USB flash drives...
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Wikipedia article on MLC memory (typically used in low cost consumer-grade USB flash drives)...
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