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A green rectangular DDR5 RDIMM module with black memory chips and a silver label, 288-pin edge connector visible

A-Tech

A-Tech Supermicro Certified 128GB DDR5 4800 CL40 1.1V ECC RDIMM 288-Pin Server RAM

SKU CH-ACBM-TFVCW

128 GB DDR5 4800 CL40 1.1 V ECC registered RDIMM with 3DS quad-rank chips, Supermicro certified for server reliability

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered
  • Supermicro certified for guaranteed server compatibility
  • 128 GB capacity handles heavy virtualization workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • CL40 latency at 1.1 V balances performance and efficiency
  • ECC registered with 3DS TSV quad-rank design ensures data integrity

Supermicro Certified 128GB DDR5 RDIMM

This A-Tech module delivers 128GB of DDR5 4800 memory in a single 288-pin RDIMM. It targets server administrators who need registered ECC capacity for Supermicro platforms validated under the MEM-DR512MH-ER48 qualification.

Thermals noise and power draw

Operating at the standard DDR5 voltage of 1.1V, the module runs at the JEDEC-defined 4800 MT/s speed with CL40 latency. Registered buffering and the 2S2Rx4 3DS/TSV quad-rank architecture manage signal integrity for dense configurations without active cooling requirements.

Quad-rank 128GB density per slot

The 4Rx4 organisation packs the full 128GB into one DIMM slot, maximizing capacity on boards with limited sockets. Buyers who need lower-rank modules for specific platform limits or who require speeds beyond DDR5 4800 should verify their system's qualified vendor list before ordering.

Points forts

  • Supermicro certified for guaranteed server compatibility
  • 128 GB capacity handles heavy virtualization workloads
  • DDR5 4800 speed delivers high memory bandwidth
  • CL40 latency at 1.1 V balances performance and efficiency
  • ECC registered with 3DS TSV quad-rank design ensures data integrity

Caractéristiques

BrandSuperMicro
SeriesSupermicro Certified
ModelMEM-DR512MH-ER48
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2S2Rx4 (4Rx4 EC8)
ChipsetMajor Brand Chipset
FeaturesSupermicro Certified MEM-DR512MH-ER48 (HMCT04MEERA)

Questions sur cet article

How do I install this 288-pin DDR5 RDIMM and what is the common mistake?

Align the single notch on the module with the slot key, press straight down until both retention clips snap shut; the frequent error is inserting it at an angle, which can bend pins or leave the module partially seated.

What maintenance or replacement will this 128GB module need over time?

No routine maintenance is required; if a memory test later reports uncorrectable errors, the module itself must be replaced as individual chips are not serviceable.

What limit appears first when this CL40 1.10V module runs sustained workloads?

The CAS latency of 40 cycles at 4800 MT/s sets the baseline response time; under continuous heavy load the memory controller will hit that timing ceiling before thermal throttling becomes a factor.

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