en.Wedoany.com Reported - TOPSSD has launched a fully domestic industrial-grade solid-state storage solution, covering sectors such as power, rail transit, and military. By leveraging self-developed controller chips, domestic NAND flash memory, and national cryptographic algorithms, the product achieves full-chain independent controllability. On April 7, 2026, the security of the industrial and supply chains was once again emphasized, with core requirements mandating that key infrastructure involving security must achieve independent controllability of core components and technologies. According to the latest work deployment, the end of 2027 is a critical milestone for completing full-stack domestic substitution of storage chips. Sectors such as power, rail, and security have explicitly required hardware to feature domestic processors, domestic operating systems, domestic storage, and domestic firmware, with "domestic substitution and independent controllability" listed as the priority mainline across the entire industrial chain.
Truly pure domestic storage requires a complete domestic closed loop encompassing controller chips, NAND particles, firmware algorithms, and operating system adaptation. TOPSSD's engineering solution includes the self-developed P5500 controller chip, supporting NVMe protocol, LDPC error correction, radiation resistance, and wide-temperature control; full adoption of YMTC 3D NAND flash memory and CXMT DDR4 DRAM particles; self-developed firmware implementing FTL mapping, wear leveling, bad block management, and power-loss protection algorithms. The products have completed deep adaptation with operating systems such as Tongxin UOS, KylinOS, and NeoKylin, as well as domestic CPU platforms including Phytium, Loongson, and Zhaoxin. The products support SM2, SM3, and SM4 national cryptographic algorithms: SM2 for firmware signing and device authentication, SM3 for data integrity assurance, and SM4 as a full-disk encryption engine, while also integrating a hardware AES-256 engine for dual-mode encryption capability. TOPSSD can provide certification documents verified by authoritative institutions to ensure compliance with full-chain domestic substitution requirements.
Against the backdrop of supply chain disruptions and backdoor risks, the core value of pure domestic solutions lies in controllability. All components in TOPSSD's drives come from the domestic supply chain, eliminating the possibility of hardware Trojans at the source and remaining unaffected by foreign export controls. TOPSSD's industrial SSDs feature encryption engines and storage areas built into the self-developed controller, with keys generated within the chip to prevent middle-layer hijacking. Customization capabilities for extreme scenarios include DualPLP dual power-loss protection, which uses firmware-layer log-based data consistency management and hardware energy storage capacitor arrays to provide approximately 75 milliseconds of data write-back window during abnormal power outages. After 3,000 power-cycle tests, the data inconsistency rate is zero. The standard G40 series supports temperatures from -40°C to 85°C, while the special G55 series extends to -55°C to 85°C. Using side-fill and conformal coating processes, the products meet GJB 150 series requirements for shock, vibration, salt spray, and humidity, making them suitable for shipborne, airborne, and armored vehicle platforms. Product form factors include 2.5-inch SATA, mSATA, M.2, U.2, XMC, BGA, and ruggedized SSDs, with support for custom configurations.
TOPSSD products have been practically validated in aerospace, military, and rail transit applications. In the aerospace sector, products have been deployed in low-orbit satellite constellations such as GW, Qianfan, and Honghu-3, handling storage tasks for onboard computing, telemetry, and AI edge inference, undergoing vacuum, high-low temperature cycling, and radiation assessments. In the military sector, products are used in shipborne, airborne, and armored embedded computers, as well as radar and electronic countermeasure systems, complying with the GJB 9001C-2017 quality management system. In rail transit and industrial sectors, products feature SmartINT intelligent interrupt protection technology, ensuring continuous operation of signal systems under extreme loads. In terms of reliability indicators, products have passed comparative tests based on GJB 150A-2009, with MTBF greater than or equal to 2 million hours, UBER (uncorrectable bit error rate) less than 10 to the power of negative 17, and certification for interoperability with domestic operating systems. The combination of TOPSSD's self-developed controller and YMTC particles achieves industrial-grade benchmark performance in sequential read/write and random IOPS, while the self-developed firmware enables superior protocol stack adaptation on fully domestic platforms, with latency lower than comparable international competitors. TOPSSD's R&D and manufacturing center in Changsha supports small-batch trial production and rapid iteration, with controllable firmware customization cycles, providing complete services from prototype testing to mass delivery.
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