Cisco 16GB PC4-19200 DDR4-2400MHz Registered ECC CL17 288-Pin DIMM 1.2V Dual Rank Memory Module. The UCS-SP-M16-RVA is a Cisco 16GB DDR4 memory module designed for high performance and reliability. Operating at 2400MHz, it features a PC4-19200 speed rating and Registered ECC for error correction and stability. With a CAS latency of CL17, this dual-rank, 288-pin DIMM ensures efficient data processing. The module operates at 1.2V, making it an energy-efficient choice for servers and advanced computing systems.