The Transformer Book T100TA has a better storage medium than most similar spec portable PCs that have been around for more than two years. This Asus laptop has an HDD storage medium, whereas most comparable spec notebook PCs that have been on the market for around the same time as it have an SSD storage medium. HDD is a traditional storage drive which stores the information on magnetic disks. HDD drives are slower than other forms of storage such as solid state drives (SSD) and flash drives.
An HDD storage medium is in fact the worst storage medium across all laptops of a similar spec and age to the Transformer Book T100TA.
An SSD storage medium is the best storage medium amongst comparable types of portable PC.