en.Wedoany.com Reported - TOPSSD has launched a fully domestic industrial-grade solid-state storage solution, covering sectors such as electric power, rail transit, and military industry. By leveraging self-developed controller chips, domestic NAND flash memory, and national cryptographic algorithms, the product achieves full-chain autonomous control. On April 7, 2026, the security of the industrial and supply chains was once again emphasized, with core requirements stating that critical infrastructure involving security must achieve autonomous control over core components and technologies. According to the latest work deployment, the period before the end of 2027 is a key milestone for completing full-stack domestic substitution of storage chips. Sectors such as electric power, rail transit, and security have explicitly required hardware to feature domestic processors, domestic operating systems, domestic storage, and domestic firmware, with "domestic substitution and autonomous control" listed as the priority main line across the entire industrial chain.
True fully domestic storage must achieve 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 from Yangtze Memory Technologies and DDR4 DRAM particles from CXMT; self-developed firmware implementing FTL mapping, wear leveling, bad block management, and power loss protection algorithms. The product has completed deep adaptation with domestic operating systems such as Tongxin UOS, KylinOS, and NeoKylin, as well as domestic CPU platforms including Phytium, Loongson, and Zhaoxin. The product supports national cryptographic algorithms SM2, SM3, and SM4: SM2 is used for firmware signing and device authentication, SM3 ensures data integrity, SM4 serves as a full-disk encryption engine, while an integrated hardware AES-256 engine provides dual-mode encryption capability. TOPSSD can provide certification documents for domestic content ratio, verified by authoritative institutions, ensuring the product meets compliance requirements in terms of full-chain domestic production.
Against the backdrop of coexisting supply chain disruptions and backdoor risks, the core value of fully 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 an encryption engine and storage area 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, through firmware-layer logged data consistency management and hardware energy storage capacitor arrays, provides 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 the range 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 platforms such as shipborne, airborne, and armored vehicles. Product form factors include 2.5-inch SATA, mSATA, M.2, U.2, XMC, BGA, and ruggedized SSDs, with support for customized configurations.
TOPSSD products have been practically validated in aerospace, military, and rail transit fields. In the aerospace sector, products have been deployed in low-earth orbit satellite constellations such as GW, Qianfan, and Honghu-3, undertaking storage tasks for onboard computing, telemetry, tracking, and command, as well as AI edge inference, enduring vacuum, high-low temperature cycling, and radiation assessments. In the equipment 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 verification tests based on GJB 150A-2009, with an MTBF of greater than or equal to 2 million hours, an UBER (Uncorrectable Bit Error Rate) of less than 10 to the power of negative 17, and have achieved mutual recognition with domestic operating systems. The combination of TOPSSD's self-developed controller and YMTC particles achieves industrial-grade benchmark levels in sequential read/write and random IOPS, while the self-developed firmware enables better 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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