Another Chinese DRAM Maker Breaks Into DDR5 Memory, Mass Producing 64GB RDIMMs as Samsung and SK Hynix Run Dry

China’s New DRAM Challenger Hits DDR5: 64GB RDIMMs Enter Mass Production as Samsung and SK Hynix Supplies Tighten

Chinese DRAM makers are moving quickly to expand their footprint in next-generation server memory, and the latest sign of that momentum is the start of mass production for DDR5 RDIMMs aimed at data centers.

The ongoing AI-driven boom is pushing memory needs to new highs. As more data centers come online—especially across China—demand for higher-capacity, higher-bandwidth RAM has surged. To keep up, domestic memory manufacturers are accelerating production and broadening their product lineups so local customers can source key components without depending entirely on overseas suppliers.

One of the newest developments comes from Jiahe Jinwei, which signaled its DDR5 ambitions back in 2021. Now its subsidiary brand SINKER, operating under POWEV, has announced a fresh wave of DDR5 memory products that includes server-focused DDR5 RDIMMs.

According to the company’s product information, SINKER is offering DDR5 memory in multiple formats, including UDIMM, SODIMM, and RDIMM, targeting everything from laptops to desktops and enterprise systems. The lineup reaches capacities up to 64 GB and speeds up to 5600 MT/s, positioning it for modern platforms that benefit from faster DDR5 bandwidth and improved efficiency.

SINKER highlights several design and compatibility points intended to appeal to enterprise and commercial buyers, including power-on protection features aimed at reliability, durability-focused resistance to shocks and drops, and compliance with JEDEC form-factor standards for plug-and-play integration and broad compatibility. The company also points to a wide range of intended use cases, spanning mobile computers, desktop and all-in-one PCs, and specialized environments such as education, healthcare, government systems, conference venues, and commercial display deployments.

Most notably for the server market, the company says it has already shipped its first DDR5 RDIMM to data centers, and that it plans to continue scaling output to meet domestic demand as production ramps.

This push comes at a time when global memory supply has been tight and pricing has climbed, making local sourcing increasingly attractive for large buyers. With major international DRAM makers heavily tied up supplying huge AI-driven orders, domestic production gives Chinese customers another path to secure DDR5 server memory in volume—especially for fast-growing data center builds where availability can matter as much as raw performance.