AddOn 16GB DDR3 SDRAM Memory Module - 16 GB (1 x 16GB) - DDR3-1600/PC3-12800 DDR3 SDRAM - 1600 MHz - 1.35 V - ECC - Registered - 240-pin - DIMM - Lifetime Warranty

Fujitsu® F3781-E516 Compatible Factory Original 16GB DDR3-1600MHz Registered ECC Dual Rank x4 1.35V 240-pin RDIMM