“The EX300U uses one of Phison’s latest PS2251-17 (U17) controllers. The PS2251-17 is the world’s first controller to use a native USB3.2 Gen2 x1 (10Gbps) interface. Being native means there is no need for a bridging chip, taking up space, resulting in more compact drives”- kitguru.net
Source: kitguru.net