It is worth mentioning the fact that both SSDs shown by Kingston have the same format, that is, they have M.2 2280 standard form factor, although it is true that in the presentation they have used expansion cards PCI-Express for a simpler and more visible installation for the user. In any case, the biggest difference between the two is the interface, since although both are physically similar, one is PCI-Express 4.0 and the other is PCI-Express 3.0. In any case, both are oriented to the consumer and the mid-range, so we can tell you that will go on sale at contained prices.
Kingston Seccos, new NVMe PCIe 3.0 SSDs
Let's start at the end. These new SSDs make use of the interface PCI-Express 3.0 x4, and it is curious that Kingston has not determined anywhere which controller they use (surely Marvell, but as we say the manufacturer has said nothing about it). They use chips 3D NAND Flash TLC with capacities ranging from 250 GB in the most basic model to 2 TB in the top-of-the-range model.
Kingston has shown some performance data in CrystalDisk Mark of these "Seccos": 3449 MB / s read and 2839 MB / s write. According to the manufacturer, the theoretical data is 3500 MB / s of reading and 3000 MB / s of writing, so in any case they are close to reality.
Kingston Grandview, new king of the mid-range
Since the arrival of the PCI-Express 4.0 interface with the new AMD platform, manufacturers have launched to create high-performance SSDs to take advantage of the huge bandwidth of the interface. The problem is that users who have upgraded to this AMD platform have been forced to disburse a large amount of money to be able to get an SSD according to it, since only devices have been included in the high range.
Kingston intends to end this with the new Grandview, since they are SSDs with PCI-Express 4.0 x4 interface and protocol NVMe 1.4 that take advantage of the performance of this interface, but are oriented to the mid-range and therefore his price will be much more content (They have not said specific price, but it will be much lower than the current models in the market right now).
Speaking of numbers, these SSDs will go on sale in capacities between 500 GB and 2 TB, and are equipped with a Marvell «Whistler Plus» controller at 12 nm with 4 flash channels and 1.2 GT / s of bandwidth per channel. They have not given performance data, and they have not even defined whether these devices will have TLC or QLC chips, so we will have to wait a little longer to know this information.