AddOn 16GB PC3-12800 DDR3-1600MHz ECC Registered CL11 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module. The AddOn 7104199-AM is a 16GB DDR3 memory module designed for high-performance computing. With a speed of 1600MHz, ECC registered for enhanced data integrity, and a CAS latency of CL11, this dual-rank module ensures efficient and reliable operation. The 240-pin DIMM operates at a low voltage of 1.35V, making it an energy-efficient choice for servers and workstations requiring stable and robust memory solutions.