AddOn 16GB PC3-12800 DDR3-1600MHz ECC Registered CL11 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module. The AddOn 7104931-AM is a 16GB DDR3 memory module designed for high-performance computing. Operating at 1600MHz with a CAS latency of CL11, it features ECC (Error-Correcting Code) for enhanced data integrity. This 240-pin DIMM is registered and dual rank, ensuring reliable and efficient performance. With a low voltage of 1.35V, it is energy-efficient and ideal for servers and workstations requiring robust memory solutions.