Corsair announced its new Force Series MP600 PCIe 4.0 SSD here at Computex in tandem with AMD's third-gen Ryzen reveal and X570 motherboard launch. When paired with a PCIe 4.0-capable system, the new drive delivers up to a beastly 4,950 MB/s of sequential read speed and 4,250 MB/s of write speed, or roughly ten times the sequential performance of any SATA SSD.
That performance comes courtesy of Phison's E16 controller, first debuting at CES 2019 which is currently the only PCIe 4.0 x4 controller on the market. Corsair paired the controller with an unspecified type of TLC flash, but we know that Phison's controller is currently only optimized for Toshiba's BiCS4 flash. (Phison will add support for Intel/Micron flash in the coming months).
You'll need to pair the SSD with a Third-gen Ryzen system to unlock the full speed of the drive, but luckily AMD is allowing vendors to enable PCie 4.0 backward compatibility with older motherboards that meet the specific criteria we've outlined here.
Corsair is rather light on the other details, such as sustained performance in heavy workloads, but the drive certainly shouldn't have throttling issues with the aggressively-styled finned heatsink. The company also isn't sharing random read and write performance, but we're sure to learn more closer to the launch in July 2019. The drive will be available worldwide through normal retail channels and carry a five-year warranty, but the company hasn't announced pricing.
PCIe 3.0 x4 = 8GT/s * 4 * 128b/130T * 1B/8b = 3.94GB/s (without considering PCIe overhead)