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Green rectangular DDR5 DIMM with black chips and gold contacts

A-Tech

A-Tech 64GB DDR5 4800 ECC RDIMM 2Rx4 for Hynix HMCG94MEBQA 109N 121N 123N Server Memory

SKU CH-BT9X-AD69V

64 GB DDR5 4800 ECC RDIMM 2Rx4 server module with CL40 latency and 1.1 V operation

  • Capacity64GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 64 GB capacity supports heavy server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC RDIMM design detects and corrects memory errors
  • 10 V operation matches DDR5 standard voltage
  • 2Rx4 registered architecture scales across multi-channel platforms

64GB DDR5 4800 ECC RDIMM 2Rx4 Server Module

This A-Tech module delivers 64GB of DDR5 4800MHz registered ECC memory for server and workstation platforms. It operates at the standard 1.10V DDR5 voltage with CL40 latency. The dual-rank 2Rx4 organisation uses a major-brand chipset and a 288-pin DIMM form factor. It is built as a compatible replacement for specific Hynix part numbers.

Suited for DDR5 RDIMM Slots Only

This memory fits systems that require registered DDR5 DIMMs with ECC support and accept a 2Rx4 configuration. It will not work in boards that take only unbuffered UDIMMs, nor in slots keyed for earlier DDR generations. Builders needing a different capacity, rank layout, or voltage should verify their platform specifications before ordering.

288-Pin DDR5 DIMM Form Factor

The module uses the 288-pin DDR5 DIMM interface, which is the single physical specification that determines whether it installs in a given server or workstation. Confirm the motherboard manual lists DDR5 RDIMM support and the correct pin count before purchase.

Highlights

  • 64 GB capacity supports heavy server workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC RDIMM design detects and corrects memory errors
  • 10 V operation matches DDR5 standard voltage
  • 2Rx4 registered architecture scales across multi-channel platforms

Specifications

BrandA-Tech
SeriesCompatible Replacement for Hynix
ModelHMCG94MEBQA, HMCG94MEBQA109N, HMCG94MEBQA121N, HMCG94MEBQA123N
Capacity64GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4 (EC4)
ChipsetMajor Brand Chipset
FeaturesHMCG94MEBQA, HMCG94MEBQA109N, HMCG94MEBQA121N, HMCG94MEBQA123N

Questions about this item

Will the 64 GB DDR5 4800 ECC RDIMM need any firmware updates or periodic replacement in a server?

The module is a solid-state component with no moving parts and no firmware to update. Under normal server conditions it runs until a hardware fault occurs, at which point the single 64 GB stick is replaced.

What limit appears first when the Hynix-compatible 2Rx4 module runs at full load continuously?

The registered DDR5 4800 design operates at 1.10 V with CL40 latency. The first sustained-use boundary is the thermal envelope of the server chassis; the memory itself has no separate throttle point listed.

How much noise, heat or power does the 288-pin DDR5 4800 RDIMM add when the system runs all day?

The module draws power at the standard DDR5 1.10 V level and produces only the heat typical for a 64 GB registered DIMM. It adds no audible noise; cooling is handled by the server’s existing airflow.

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