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Green DDR5 RDIMM circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 64GB DDR5 4800 ECC RDIMM 2Rx4 for Hynix HMCG94AEBRA Server Memory

SKU CH-N3AP-GWR91

64 GB DDR5 4800 ECC registered DIMM with 2Rx4 organisation and CL40 latency for compatible Hynix server platforms

  • Capacity64GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered
  • High-capacity 64GB module handles heavy server workloads
  • DDR5 4800 speed delivers fast data throughput for demanding applications
  • ECC registered design corrects errors to protect data integrity
  • 1V operation reduces power draw in dense deployments
  • 288-pin RDIMM form factor fits standard DDR5 server slots

Server DDR5 ECC RDIMM 64GB

This A-Tech module delivers 64GB of DDR5 4800 registered ECC memory in a single 288-pin DIMM. It operates at 1.10V with CL40 latency and uses a 2Rx4 organisation suited for server and workstation platforms.

Suited for registered ECC slots only

The module requires a motherboard that supports registered ECC DDR5 DIMMs; it will not function in consumer boards that accept only unbuffered non-ECC memory. Buyers needing unbuffered DIMMs or lower-density kits should look elsewhere.

Sustained load stability from registered design

The registered buffer reduces electrical loading on the memory controller, helping maintain signal integrity during continuous multi-threaded workloads. ECC correction detects and corrects single-bit errors to prevent data corruption over long uptime periods.

Highlights

  • High-capacity 64GB module handles heavy server workloads
  • DDR5 4800 speed delivers fast data throughput for demanding applications
  • ECC registered design corrects errors to protect data integrity
  • 1V operation reduces power draw in dense deployments
  • 288-pin RDIMM form factor fits standard DDR5 server slots

Specifications

BrandA-Tech
SeriesCompatible Replacement for Hynix
ModelHMCG94AEBRA, HMCG94AEBRA102N, HMCG94AEBRA109N, HMCG94MEBRA, HMCG94MEBRA109N
Capacity64GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4 (EC8)
ChipsetMajor Brand Chipset
FeaturesHMCG94AEBRA, HMCG94AEBRA102N, HMCG94AEBRA109N, HMCG94MEBRA, HMCG94MEBRA109N

Questions about this item

Does my server motherboard need a DDR5 RDIMM slot for this 288-pin module?

Yes, this module uses the DDR5 288-pin RDIMM form factor and requires a compatible DDR5 registered DIMM slot to install.

Will this 2Rx4 ECC RDIMM work alongside existing DDR5 registered DIMMs of different capacities?

It can operate with other DDR5 registered DIMMs if the platform supports mixed capacities, but matching rank and speed is recommended for stability.

How do I confirm the module is running at the rated DDR5 4800 speed after installation?

Check the system BIOS or OS memory information; it should report the module operating at 4800 MT/s with CL40 latency at 1.1V.

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