The Chinese company Yingren Technology, known outside the Middle Kingdom under the InnoGrit brand, announced the start of mass production of the first PCIe 5.0 SSD controller developed in the country – the YR S900 model, designed for corporate and industrial drives. This was reported by local publication EE Times China.
The YR S900 controller is based on the open source RISC-V architecture. The decision in his favor is explained by the fact that the controller in this case is not subject to US export restrictions. However, the company did not disclose what technological process the YR S900 will be used to manufacture and where exactly.
The Chinese SSD controller complies with PCIe 5.0 specifications and supports four lines of this interface, as well as full support for the NVMe 2.0 protocol. The controller can be configured to operate with 16 or 18 channels for connecting flash memory chips. The YR S900 claims full compatibility with all common types of NAND flash memory from all major manufacturers, but works particularly effectively with NAND memory from China’s Yangtze Memory Technologies Corp (YMTC).
During the demonstration, the YR S900 demonstrated very competitive performance compared to advanced PCIe 5.0 controllers from other manufacturers. The sequential read speed was up to 14 GB/s and the sequential write speed was up to 12 GB/s. At the same time, the peak random read and write performance was 3.5 and 2.5 million IOPS, respectively. This demonstrated the efficiency of the same Phison PS5026-E26 controller that is used in most current PCIe 5.0 SSD models today. The Phison chip is used in consumer SSDs, while the Chinese controller is aimed at the corporate segment.
The manufacturer also pointed out that the YR S900 is equipped with a third-generation ECC processor to optimize the 4K LDPC encoding and decoding algorithm. According to the company, the use, together with the new hybrid adaptive error correction function ECC, improves the performance of TLC NAND and QLC NAND memories. When the controller is combined with Kioxia XL flash memory, the latency when reading 4K sectors is only 10 μs (microseconds). Additional features of the YR S900 controller include support for FDP (Flexible Data Placement), hardware virtualization SR-IOV, CMB (Controller Memory Buffer), as well as various data encryption algorithms.
Although Yingren Technology has confirmed that it has begun mass production of the YR S900 SSD controller, it has not said when we can expect the first enterprise-class PCIe 5.0 SSDs based on it to appear. It is very likely that the YR S900 will be used primarily in products made only for the Chinese market.