I see where a few months ago Zalman announced a couple of new USB Flash Drives with SLC NAND. Zalman claims the following performance: 155 MB/s read speed 135 MB/s write speed The only place that I found selling these new Zalman USB Flash Drives is eBay and the seller has a No Returns Policy. -http://news.softpedia.com/news/ZALMAN-Prepares-USB-3-0-Flash-Drives-with-SLC-NAND-271482.shtml An Explanation of the three different Flash Chip Types: -http://www.centon.com/flash-products/chiptype