This IBM 46W0779 compatible 16GB DDR3-1866MHz dual rank registered ECC 1.5V 240-pin CL13 factory original RDIMM is 100% guaranteed to be compatible with your system and to work right the first time. All of our server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung, Micron, or Hynix). Our products are also guaranteed by federal law to not affect or void OEM warranties.

• Editing high-resolution pictures, rendering 3D graphics and playing the latest games is not a big deal with 16 GB of memory that effortlessly manages them
• DDR3 SDRAM operates at an effective bus speed with minimal power consumption and as a result, you get optimal computer performance with an improved memory heat dissipation
• Up to 1866 MHz speed with CL13 latency for smooth computer performance