Timetec Samsung 16GB DDR3L 1600MHz PC3-12800 Registered ECC 1.35V CL11 2Rx4 Dual Rank 240 Pin RDIMM Server Memory RAM Module Upgrade (16GB) DDR3L 1600MHz PC3-12800 240 Pin Registered ECC 1.35V CL11 Dual Rank 2Rx4 based 1024x4 JEDEC standard 1.35V (1.28V ~ 1.45V) and 1.5V (1.425V ~ 1.575V) Power Supply This is a dual voltage piece and can operate at 1.35V or 1.5V Module Size: 16GB Package: 1x16GB A must For Server, Not For Desktop/Laptop For Selected ASRock , ASUS/ASmobile , Dell , DFI , Fujitsu , Gigabyte , HP/Compaq , Huawei , IBM , Intel , Lenovo , Quanta , Supermicro , Tyan Computers , Wiwynn Guaranteed  3 months warranty from Purchase Date Free technical support (support@timetecinc.com) MON - FRI 9AM-6PM PST