Increase installed memory by 16 GB in systems that accept DDR5-4800 registered ECC RDIMMs. This module combines a server-class RDIMM form factor with 1Rx8 organization, providing a single-rank DIMM option for capacity expansions or like-for-like memory replacement. It is intended for platforms that explicitly support registered DDR5 memory rather than unbuffered desktop DIMMs. The module uses the 288-pin DDR5 RDIMM interface and operates at the DDR5-4800 data rate. Registered signal processing buffers memory control signals between the host memory controller and the DRAM devices, while ECC capability supports error-correcting memory configurations. DDR5 RDIMMs use a 1.1 V operating voltage and require a compatible memory controller, motherboard socket, and firmware configuration. MEM-DR516MB-ER48-ACC provides one 16 GB DIMM with a single-rank x8 DRAM layout. That combination distinguishes it from higher-capacity, multi-rank, unbuffered, or earlier-generation memory options. Before installation, match the platform's supported memory type, RDIMM requirement, DDR5 speed support, DIMM population rules, and permitted module capacities. Mixing registered and unbuffered DIMMs is not supported by server memory architectures, so this module should be installed only where registered DDR5 ECC RDIMMs are specified.