The Patriot Viper VPN100 is a solid-state drive in the M.2 2280 form factor, launched on March 29th, 2019. It is available in capacities ranging from 256 GB to 2 TB. This page reports specifications for the 512 GB variant. With the rest of the system, the Patriot Viper VPN100 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 VPN100, 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 handled more quickly. The Viper VPN100 is rated for sequential read speeds of up to 3,100 MB/s and 2,200 MB/s write; random IO reaches 700K IOPS for read and 480K for writes.
At its launch, the SSD was priced at 88 USD. The warranty length is set to three years, which is above average, but shorter than the five years offered by many other vendors. Patriot guarantees an endurance rating of 400 TBW, a good value.