Since the development of PCIe 4.0 SSD, its products have been extremely rich. However, in the field of consumption, the main control scheme is almost monopolized by ps5016-e16. After all, it is the first launch and the only large-scale commercial solution. At first glance, the performance of the cluster E16 master controller is good, and the maximum continuous read-write performance is 5.0gb/s and 4.4gb/s, but don’t forget that the pcie4.0 X4 can provide up to 8GB / s bandwidth, which is obviously not fully utilized. < / P > < p > at the same time, the technology of E16 master control is still 28nm, and the power consumption and calorific value are very considerable, which makes SSD have to be equipped with exaggerated heat sink, and some even use active fan. < p > < p > 6 more than a year ago, the group alliance disclosed the master control scheme ps5018-e18 for the second generation of pcie4.0 SSD, but no details were given. The read and write speeds previously exposed were close to 7.1gb/s and 6.9gb/s respectively. < / P > < p > today, we have seen the latest test data of E18 master. The continuous reading speed has reached 7.38gb/s, and the continuous writing speed has reached 7.02gb/s, which seems to have been further optimized. < p > < p > the specific specification of E18 is not available for the time being, especially the manufacturing process, but it will definitely not be 28nm again. Maybe it will also be upgraded to 12NM, so the power consumption and heating will be basically no problem. < p > < p > interestingly, Huirong has just launched its own main control family of PCIe 4.0 SSD today, including high-performance sm2264, mainstream sm2267, entry-level sm2267xt, and 12NM process. The maximum continuous read / write can reach 7.4gb/s and 6.8gb/s. Global Tech