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Single green DDR5 RDIMM with black heat spreader and gold contacts

A-Tech

A-Tech 128GB DDR5 4800 ECC RDIMM Server Memory

SKU CH-9TMM-4GA79

128 GB DDR5 4800 ECC RDIMM module with CL40 latency and 1.1 V operation

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 128 GB DDR5 capacity handles heavy server workloads
  • 4800 MHz speed delivers high memory bandwidth
  • ECC RDIMM registered design ensures data integrity
  • Samsung chipset compatibility simplifies drop-in replacement
  • 1 V DDR5 voltage reduces power draw

128GB DDR5 4800 ECC RDIMM Server Memory

This 128GB DDR5 4800 ECC RDIMM module is built for servers and workstations that require registered, error-correcting memory. It replaces Samsung M321RAGA0B20-CWK and M321RAGA0B20-CWKZJ parts in compatible platforms.

DDR5 4800 registered DIMM limits

The DDR5 4800 standard at PC5-38400 speed requires a motherboard and CPU that support registered ECC DIMMs at 1.10V. Systems limited to lower DDR5 speeds or unbuffered memory cannot use this module.

128GB 4Rx4 3DS capacity

The single-module 128GB density uses 4Rx4 3DS/TSV organisation with Samsung chipset. Platforms that do not support this rank structure or maximum capacity per slot will not recognise the full memory.

Puntos fuertes

  • 128 GB DDR5 capacity handles heavy server workloads
  • 4800 MHz speed delivers high memory bandwidth
  • ECC RDIMM registered design ensures data integrity
  • Samsung chipset compatibility simplifies drop-in replacement
  • 1 V DDR5 voltage reduces power draw

Especificaciones

BrandA-Tech
SeriesCompatible Replacement for Samsung
ModelM321RAGA0B20-CWK, M321RAGA0B20-CWKZJ
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2S2Rx4 (4Rx4 EC8)
ChipsetSamsung Chipset
FeaturesM321RAGA0B20-CWK, M321RAGA0B20-CWKZJ

Preguntas sobre este artículo

Should I choose the 128GB single module or add multiple modules for my server?

This is a single 128GB module. Add more identical modules to reach your platform's maximum capacity and populate channels evenly for best bandwidth.

What does the 4800MHz speed deliver in a real server workload?

DDR5 4800 (PC5-38400) provides high throughput for virtualization, databases and compute tasks, with ECC correcting single-bit errors to maintain data integrity.

How does the 288-pin DDR5 RDIMM interface limit performance?

The registered 288-pin DDR5 DIMM runs at 1.1V with CL40 latency; the memory controller and CPU determine the final operating speed and maximum supported capacity.

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