Lenovo 16GB DDR3-1866 RDIMM 46W0670 | Server Memory, RDIMM, ECC

Maintain dependable performance on supported Lenovo and IBM server platforms with this 16GB DDR3 RDIMM. Built as a single 16GB module in a 2Rx4 configuration, it delivers the registered buffering and ECC protection expected in production infrastructure where memory errors and instability are not acceptable. Running at 1,866 MHz, this PC3-14900R module is suited to environments that still depend on DDR3-era systems for line-of-business applications, virtualization hosts, and storage controllers. The registered design helps reduce electrical load on the memory controller, supporting higher-capacity server configurations more reliably than unbuffered desktop memory. For procurement teams managing mixed-generation fleets, this module offers a straightforward path to extend the service life of compatible hardware without replacing the platform. It is a practical choice when consistency, compatibility, and validated server memory behavior matter more than chasing newer standards. Use it to restore headroom, reduce paging pressure, and keep critical services running on infrastructure already in place.