The Silicon Power UD90 is the first drive we’ve had on our testbed with Phison’s new E21T SSD controller. If you only need 1TB of capacity, this is a relatively inexpensive PCIe 4.0 drive that would work great in a Playstation 5 or desktop PC. Thanks to the DRAM-less controller and 176-layer TLC flash, it’s also power efficient enough to work great with laptops