The Sabrent Rocket Q4 is an NVMe SSD that leverages the new PCIe 4.0 interface and is the latest model to be reviewed from the company’s Rocket line (the others being the Sabrent Rocket PCIe Gen4 and Sabrent Rocket PCIe Gen3). Sitting in the middle of the bunch as far as performance and price go, the Rocket Q4 uses the M.2 2280 form factor and is based on QLC NAND Flash memory, the latter which means it is more cost-effective.