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Hynix HMCG78AEBRA111N 16GB DDR5-4800MHz RDIMM 1Rx8 CL40 Memory
- 16GB DDR5 RDIMM Memory Module
- Speed: 4800MHz
- CAS Latency: CL40
- Configuration: 1Rx8 (Single Rank, 8-bit)
- Voltage: Standard DDR5 voltage
- Interface: DDR5
- ECC Support: Yes (Registered ECC)
- Form Factor: DIMM
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Typically 1-2 handling + 3-7 transit days
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Product Overview
The Hynix HMCG78AEBRA111N is a high-performance 16GB DDR5 Registered DIMM (RDIMM) memory module. It operates at a speed of 4800MHz with a CAS Latency of 40, making it suitable for demanding server and workstation applications. This 1Rx8 module offers a significant upgrade for systems requiring increased memory capacity and bandwidth.
Technical Information
| Capacity | 16GB |
| Type | DDR5 RDIMM |
| Speed | 4800MHz |
Additional Specifications
| Latency | CL40 |
| Rank | 1Rx8 |
| ECC | Registered ECC |
Product Description
The Hynix HMCG78AEBRA111N is engineered to meet the rigorous demands of modern computing environments, particularly in servers and high-performance workstations. As a DDR5 RDIMM, it provides enhanced memory performance, increased power efficiency, and improved signal integrity compared to previous DDR generations. The 1Rx8 organization signifies a single rank of memory chips, each with an 8-bit data width, contributing to its overall efficiency and compatibility with a wide range of server platforms. This module's 4800MHz clock speed translates to a substantial increase in data transfer rates, crucial for applications that are memory-intensive, such as large-scale data analysis, virtualization, and complex simulations. The CL40 CAS Latency, while a specific timing parameter, is balanced within the DDR5 standard to ensure reliable operation at its rated speed. The Registered DIMM (RDIMM) design incorporates a register chip that buffers command and address signals, reducing electrical load on the memory controller and allowing for higher memory capacities and densities. Designed for enterprise-grade reliability, the HMCG78AEBRA111N supports Registered ECC (Error-Correcting Code) functionality. This feature is vital for maintaining data integrity in mission-critical systems by detecting and correcting single-bit errors on the fly, preventing data corruption and system crashes. Its standard DIMM form factor ensures compatibility with most server motherboards that support DDR5 RDIMM memory.

