A-Tech 16GB DDR3L 1066 ECC RDIMM 4Rx4 Server Memory

16GB DDR3L 1066 ECC RDIMM Server Module

This is a single 16GB DDR3L 1066 ECC Registered DIMM built for server and workstation platforms. It operates at 1.35V with CL7 latency and uses a 4Rx4 rank configuration on a 240-pin interface. The module is validated as a direct replacement for Samsung M393B2K70CM0-YF8 and equivalent part numbers. It targets administrators who need registered ECC memory to maintain data integrity in multi-slot configurations.

Suits registered ECC DDR3L 1066 systems only

This module fits servers that require DDR3L 1066 registered ECC DIMMs with 4Rx4 organisation and 1.35V operation. It will not work in desktops or laptops that accept only unbuffered non-ECC memory. It is also incompatible with platforms limited to DDR3 1.5V or higher voltage modules. Buyers needing unbuffered ECC or consumer SO-DIMM form factors should look at other products.

4Rx4 rank density decides motherboard slot support

The 4Rx4 organisation means each module presents four logical ranks to the memory controller. Many server boards limit the number of ranks per channel, so installing multiple 4Rx4 DIMMs can exceed that limit and prevent the system from posting. Verify the platform's maximum ranks per channel and qualified vendor list before purchasing.