In examining the flash industry over the past eight years, I don't think many would argue that there has been insurmountable growth, paired with enough growing pains and obstacles along the way to frustrate even the best in the business. Flash technology has grown so fast that today it would be seemingly impossible to find anyone not tied to flash in some way. Within the business, you could harness exabytes of differing opinions yet, in this lies one thing all would agree upon; single level cell (SLC) flash reigns supreme. It is the best. If you are looking for endurance, it is untouchable. Our report of the Mach Xtreme MX-ES Ultra Flash Drive speaks to the first SLC flash drive that we have reviewed and, at least for those new to an understanding of flash memory, promises to provide us with a very educational report.