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Green bare circuit board DDR5 server memory module with black chips no heat spreader 288 pin edge connector

A-Tech

A-Tech 128GB DDR5 4800 ECC RDIMM 4Rx4 for Samsung M321RAGA0B20-CWK server RAM

SKU CH-G3PH-Y6FTM

128GB DDR5-4800 ECC registered server DIMM with 4Rx4 Samsung chips, CAS 40 at 1.10V

  • Capacity128GB
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS Latency40
  • Voltage1.10V
  • ECCYes
  • Massive 128GB capacity handles heavy server workloads
  • DDR5 4800MHz speed delivers high memory bandwidth
  • ECC RDIMM registered design ensures data integrity
  • 4Rx4 3DS/TSV architecture maximises density per module
  • 10V standard voltage reduces power consumption

128GB DDR5 4800 ECC RDIMM

This 128GB DDR5 4800 ECC RDIMM module is built for servers and workstations that require registered memory with error correction. It uses a 288-pin form factor and operates at the standard 1.10V DDR5 voltage. The 4Rx4 rank configuration with 3DS/TSV stacking suits high-density memory channels in multi-socket platforms.

Capacity and headroom

A single 128GB module delivers substantial capacity for virtualisation, in-memory databases and large dataset processing. The DDR5 4800 speed (PC5-38400) with CAS latency 40 provides baseline bandwidth for current server CPUs. Workloads that exceed this module count or require faster transfer rates will need additional DIMMs or higher-speed memory.

Replacement and upgrade context

This module replaces Samsung M321RAGA0B20-CWK, M321RAGA0B20-CWKBH and M321RAGA0B20-CWKZJ parts in compatible systems. The jump is worthwhile when moving from lower-capacity DDR5 RDIMMs or when populating empty slots to reach the platform's maximum supported memory. It does not fit systems limited to UDIMM or earlier DDR generations.

Points forts

  • Massive 128GB capacity handles heavy server workloads
  • DDR5 4800MHz speed delivers high memory bandwidth
  • ECC RDIMM registered design ensures data integrity
  • 4Rx4 3DS/TSV architecture maximises density per module
  • 10V standard voltage reduces power consumption

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for Samsung M321RAGA0B20-CWK M321RAGA0B20-CWKBH M321RAGA0B20-CWKZJ
ModelA-Tech 128GB DDR5-4800 ECC RDIMM Server RAM Module
Capacity128GB
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS Latency40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
ChipsetSamsung Chipset
Heat SpreaderNo
FeaturesMajor Brand DRAM IC Chips

Questions sur cet article

Can this 128GB DDR5 4800 ECC RDIMM be mixed with older DDR5 modules running at a different speed?

The module runs at 4800MHz with CL40 latency and 1.10V. Mixing speeds or timings will force all channels to the slowest common settings, so identical modules are recommended for stable server operation.

How can I verify the 4Rx4 registered ECC module is detected correctly after installation?

Check the BIOS memory map or OS tools for a single 128GB DIMM at 4800MT/s with ECC active; the registered buffer and 4Rx4 organisation should appear in the SPD data.

Does the box include a heat spreader or any extra cables, or is it just the bare 288-pin RDIMM?

The package contains only the 128GB 288-pin DDR5 RDIMM with Samsung chipset ICs; no heat spreader, cables or additional accessories are supplied.

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