Transcend Information Inc. was founded in Taiwan in 1988, and the company prides itself on ?organizing your digital life.? Their new ESD400 series of external USB SSDs is their entry into the market for portable, USB-powered SSDs that aims to replace the mature 2.5? hard drive that's dominated the small external drive market for years. With sequential read and write speeds both spec?d in the range of 400 megabytes per second, the rated performance of this drive is vastly better than any spinning hard drive. Benchmark Reviews checks out the 256GB version of the ESD400 in this review.