SK hynix HMCG88AEBRA174N 32GB DDR5-4800 ECC Registered Server Memory

A server memory upgrade should add usable capacity without introducing uncertainty about the module architecture. The SK hynix HMCG88AEBRA174N provides 32GB of DDR5 ECC Registered memory for compatible servers and workstations, making it a focused option for expanding an existing deployment or building a balanced memory configuration. Its dual-rank x8 organization and standard DDR5-4800 operating specification give buyers the essential details needed to match the module to a supported platform and its memory-population rules.

Key Features

• Server-oriented registered architecture suits platforms designed for RDIMMs, helping buyers distinguish this module from desktop unbuffered memory.
• ECC support adds error-correction capability when used with a compatible processor and motherboard, supporting data integrity in sustained computing workloads.
• A single-module capacity increment allows upgrades to be planned around the server's available slots and channel layout rather than committing to a fixed multi-module kit.
• Standard operating voltage and timing specifications provide a clear basis for matching supported memory, without depending on an advertised overclocking profile.
• Dual-rank organization gives technicians a defined module layout to check against the platform's supported rank and population limits.

Product Specifications

• Manufacturer: SK hynix
• Part Number: HMCG88AEBRA174N
• Product Type: Server memory module
• Module Capacity: 32GB
• Module Configuration: 1 x 32GB
• Memory Technology: DDR5 SDRAM
• Data Rate: 4800MT/s
• Memory Speed Grade: DDR5-4800
• Bandwidth Classification: PC5-38400R
• Form Factor: RDIMM
• Pin Count: 288
• Buffering: Registered
• Error Correction: ECC
• Rank Count: Dual rank
• Rank Organization: 2Rx8
• DRAM Device Width: x8
• CAS Latency: CL40
• Operating Voltage: 1.1V
• Module Height Class: Standard height

Use Cases

• Virtualization hosts where additional memory capacity is needed for guest operating systems and application allocation.
• Database and business-application servers that benefit from keeping larger working sets in system memory.
• Compatible professional workstations handling memory-intensive development, analysis, or content-processing tasks.
• Service replacements where the existing configuration calls for matching capacity, speed, rank organization, and registered memory.

Compatibility

Requires a server or workstation that explicitly supports 288-pin DDR5 ECC Registered RDIMMs with this capacity and rank organization. It is not a substitute for DDR4 memory, DDR5 unbuffered DIMMs, or laptop SODIMMs. Check the system's memory support list and channel-population guidance; the processor, firmware, and installed module configuration determine the operating speed.

Frequently Asked Questions

Does 4800MT/s mean the memory runs at a 4800MHz clock?

No. MT/s describes the effective transfer rate. It should not be confused with the underlying memory clock frequency.

Can this module be mixed with ordinary DDR5 desktop RAM?

No. Registered and unbuffered modules have different platform requirements. Use only the memory architecture supported by the system.

Will adding one module always provide the best performance?

Not necessarily. Populate memory channels according to the server manufacturer's guidance so that capacity and bandwidth remain balanced across the configuration.

Is ECC enabled by the module alone?

No. Error-correction operation also requires support from the processor, motherboard, and firmware.

For a dependable upgrade, plan the full memory layout before choosing how many modules to install. Check available channels, the modules already fitted, and the platform's supported capacity and rank combinations so the expansion delivers useful headroom rather than an uneven configuration. With those requirements matched, this SK hynix module offers a straightforward way to extend the working capacity of a DDR5 RDIMM-based system while retaining the registered ECC architecture expected by the platform.