The Kingston A400 is a solid-state drive in the 2.5" form factor, launched on January 11th, 2018. It is available in capacities ranging from 120 GB to 1.9 TB. This page reports specifications for the 480 GB variant. With the rest of the system, the Kingston A400 interfaces using a SATA 6 Gbps connection. The SSD controller is the PS3111-S11-13 from Phison, a DRAM cache is not available. Kingston has installed 64-layer TLC NAND flash on the A400, 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 absorbed more quickly. The cache is sized at 4 GB, once it is full, writes complete at 210 MB/s. The A400 is rated for sequential read speeds of up to 500 MB/s and 450 MB/s write; random IO reaches 90K IOPS for read and 35K for writes.
The SSD's price at launch is unknown. The warranty length is set to three years, which is above average, but shorter than the five years offered by many other vendors. Kingston guarantees an endurance rating of 160 TBW, a typical value for consumer SSDs.