Timetec SUPERMICRO 64GB Kit (4x16GB) DDR3 1866MHz PC3-14900 Registered ECC 1.5V CL13 2Rx4 Dual Rank 240 Pin RDIMM Server Memory RAM Module Upgrade (64GB Kit (4x16GB)) DDR3 &#x2022; 1866MHz &#x2022; PC3-1866 &#x2022; 240-Pin &#x2022; Registered &#x2022; ECC &#x2022; 1.5V &#x2022; CL13 &#x2022; Dual Rank &#x2022; 2Rx4 based &#x2022; 1024x4JEDEC standard 1.5V (1.425V ~1.575V) Power SupplyModule Size: 16GB &#x2022; Package: 4x16GB &#x2022; A must for Servers, Not for Desktop PCs/LaptopFor Selected Apple , ASRock , ASUS/ASmobile , Cisco , Dell , Fujitsu , Gigabyte , HP/Compaq , Huawei , IBM , Intel , Lenovo , NEC , Quanta , Supermicro , Tyan Computers ,