Plextor today announced that it revised the warranty policy of its recently announced EX1 portable solid-state drive to be effective for 5 years, from its existing 3 years. This change is applicable to all products already sold and with retailers as unsold inventory. The EX1 is a series of portable SSDs with 10 Gb/s USB 3.1 host interface, with a single cable handling both power and host connectivity. The drives combine Silicon Motion-made controllers with SK Hynix 16 nm TLC NAND flash memory, and come in capacities of 128 GB, 256 GB, 512 GB, priced at 79€, 119€, and 213€, respectively.