The Samsung 860 QVO was a solid-state drive in the 2.5" form factor, launched on December 16th, 2018, that is no longer in production. It was available in capacities ranging from 1 TB to 4 TB. This page reports specifications for the 2 TB variant. With the rest of the system, the Samsung 860 QVO interfaces using a SATA 6 Gbps connection. The SSD controller is the MJX Maru (S4LR030) from Samsung, a DRAM cache chip is available. Samsung has installed 64-layer QLC NAND flash on the 860 QVO, the flash chips are made by Samsung. 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 78 GB, once it is full, writes complete at 160 MB/s. The 860 QVO is rated for sequential read speeds of up to 550 MB/s and 520 MB/s write; random IOPS reach up to 96K for reads and 89K for writes.
At its launch, the SSD was priced at 300 USD. The warranty length is set to five years, which is an excellent warranty period. Samsung guarantees an endurance rating of 720 TBW, a relatively low value compared to other SSDs.