AddOn 16GB PC3-12800 DDR3-1600MHz ECC Registered CL11 240-Pin DIMM Low Profile Dual Rank Memory Module. The AddOn 00D4967-AM memory module offers 16GB of high-performance PC3-12800 DDR3-1600MHz RAM, featuring ECC (Error-Correcting Code) for enhanced data integrity and reliability. This registered, low-profile dual-rank module with a CL11 latency is ideal for servers and workstations that require robust and stable memory solutions. With its 240-pin DIMM form factor, it ensures compatibility with a wide range of systems, providing efficient multitasking and improved overall system performance.