The Patriot Viper VPR100 was a solid-state drive in the M.2 2280 form factor, launched on December 6th, 2019, that is no longer in production. It was available in capacities ranging from 256 GB to 2 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the Patriot Viper VPR100 interfaces using a PCI-Express 3.0 x4 connection. The SSD controller is the PS5012-E12-27 from Phison, a DRAM cache chip is available. Patriot has installed 64-layer TLC NAND flash on the Viper VPR100, the flash chips are made by Toshiba. 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 soaked up more quickly. The cache is sized at 24 GB, once it is full, writes complete at 1000 MB/s. The Viper VPR100 is rated for sequential read speeds of up to 3,300 MB/s and 2,900 MB/s write; random IOPS reach up to 700K for reads and 650K for writes.
At its launch, the SSD was priced at 432 USD. The warranty length is set to five years, which is an excellent warranty period. Patriot guarantees an endurance rating of 3115 TBW, a good value.