Seagate and Phison often collaborate. Seagate Nytro 5350 series enterprise SSDs are also in this category. 2.5-inch SSDs with U.2/U.3 use the Phison X1 SSD platform and PCIe 4.0. This ensures high performance and high returns.
Phison’s turnkey SSD X1 SSD
Phison, a controller manufacturer, is most well-known for its SSD platforms that it offers customers. The company is also keen to enter the enterprise market and has presented the “X1 SSD” platform. This can be used by other manufacturers for a fee.
Seagate, which has new enterprise SSDs made by the Nytro clan, is the first customer and the second partner. Phison’s E20 controller (PS5020–E20) is used in the X1 platform. There were many hints before. Phison no longer refers to the “X1 SSD Solution”, but only mentions the name of the controller.
Core data of the Phison X1 SSD platform. Photo: Phison. According to Phison there are two ARM R5 cores as well as “dozens” small co-processors. This should result in high energy efficiency. In a 2-port design, the interface is PCIe 4.x4 x4. The 2.5-inch format has a height of 7 or 15mm. The U.3 connection is used. 128-layer 3D NAND (TLC), with 3 bits per cells, is selected as the flash memory.
We are referring to “eTLC”, which stands as select enterprise-class TLC/NAND. This platform could achieve transfer rates up to 7,400/7.200 MB/s sequential read/write at its peak. It would also use almost all of the interface’s practical limits.
For a PCIe 4. SSD, the 1,750,000 IOPS at the top for randomly reading 4K data are particularly high. In writing, a maximum of 470,000 IOPS is stated. Phison makes a comparison and claims that it is faster then competitors like the Samsung PM1733 or the Kioxia CM6. This advantage is particularly evident with sequential writing. Independent tests can only show how much of it is still in practice.
Phison’s X1: A performance comparison according to the manufacturer. Photo: Phison. It is important to note that Phison uses models that are usually only a few years old in this comparison. The platform could not compete with a Kioxia CM7, which has 14 GB/s and PCIe 5.0.
Phison X1: According to the manufacturer, there are advantages in terms power consumption (Photo: Phison). Phison’s X1 SSD platform is also ahead of the rest in terms power consumption. The SSDs consume 6.5 watts when idle, 13.5 for random reading and 17.9 for random writing. Further details are available at product pages, 13.5 watts for random reading, and 17.9 watts for random writing.
Seagate Nytro 5350/5550 uses Phison X1
The new Seagate SSDs from the Nytro 5535 and Nytro 5555 series are not much to talk about, since they use the same platform as the Nytro 5350. The 5350 series is for write-intensive workloads (1 DWPD), while 5550 is for mixed workloads (3 DWPD).
The range is 1.92 TB up to 7.68TB for 5350 series, and 1.6 TB up to 6.4TB for 5550 series. However, there are more storage options at a lower cost.
The Datasheets deposited do not include the top 15.36 TB or 12.8 TB models. Business customers should have access to the smaller models this month. The prices were not disclosed.