The Sabrent Rocket 4 Plus is a solid-state drive in the M.2 2280 form factor, launched in 2022. It is available in capacities ranging from 500 GB to 4 TB. This page reports specifications for the 4 TB variant. With the rest of the system, the Sabrent Rocket 4 Plus interfaces using a PCI-Express 4.0 x4 connection. The SSD controller is the PS5018-E18-41 from Phison, a DRAM cache chip is available. Sabrent has installed 176-layer TLC NAND flash on the Rocket 4 Plus, the flash chips are made by Micron. Please note that this SSD is sold in multiple variants with different NAND flash or controller, which could affect performance, the "Notes" section at the end of this page has more info. To improve write speeds, a pseudo-SLC cache is used, so bursts of incoming writes are processed more quickly. The cache is sized at 440 GB, once it is full, writes complete at 3840 MB/s. Copying data out of the SLC cache (folding) completes at 1920 MB/s. Thanks to support for the fast PCI-Express 4.0 interface, performance is excellent. The Rocket 4 Plus is rated for sequential read speeds of up to 7,000 MB/s and 6,850 MB/s write; random IOPS reach up to 650K for reads and 700K for writes.
At its launch, the SSD was priced at 710 USD. The warranty length is set to five years, which is an excellent warranty period. Sabrent guarantees an endurance rating of 3000 TBW, a typical value for consumer SSDs.