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Green 288-pin DDR5 RDIMM module with black chips and silver label

A-Tech

A-Tech 128GB DDR5 4800 EC8 RDIMM 2S2Rx4 3DS server RAM

SKU CH-WP9V-77WTD

A 128 GB DDR5 4800 ECC registered DIMM with quad-rank 3DS stacking for high-density server and workstation memory upgrades

  • Capacity128GB
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes
  • Buffered/RegisteredRegistered

Capacity 128GB

  • 128 GB capacity supports heavy server workloads
  • DDR5 4800 MT/s speed moves data faster
  • CL40 CAS latency keeps timing tight
  • 10 V operation matches DDR5 standard power
  • 288-pin RDIMM form factor fits registered slots

Capacity and purpose

This 128GB DDR5 module targets servers and workstations that require registered ECC memory. It is not compatible with desktop or laptop computers. The quad-rank 3DS design suits platforms built for very high memory density per slot. Buyers needing non-ECC or unbuffered memory cannot use this module.

Interface limits

The DDR5 4800 standard operates at 1.10V with a CL40 latency and a 38400 MT/s data rate. Registered buffering adds a clock cycle, so the memory controller must support RDIMM signalling. Systems limited to lower DDR5 speeds or to UDIMM topology will not accept this module.

Build and connectors

The 288-pin DIMM uses major-brand chips on a 3DS/TSV stack to achieve four logical ranks in a single height. Registered operation and on-die ECC (EC8) improve signal integrity for dense configurations. Installers must follow the system manual for correct slot population and channel guidelines.

Puntos fuertes

  • 128 GB capacity supports heavy server workloads
  • DDR5 4800 MT/s speed moves data faster
  • CL40 CAS latency keeps timing tight
  • 10 V operation matches DDR5 standard power
  • 288-pin RDIMM form factor fits registered slots

Especificaciones

BrandA-Tech
SeriesA-Tech DDR5 Server Memory RAM
ModelA-Tech 128GB 2S2Rx4 PC5-4800B-R EC8
Capacity128GB
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2S2Rx4 (4Rx4 3DS/TSV)
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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Preguntas sobre este artículo

Should I pick the 128 GB module or a smaller capacity for my server?

Choose the 128 GB module when your workload needs maximum capacity per slot; select a smaller module only if your platform limits rank count or total memory per channel.

What does the 4800 MHz rating deliver once the module is installed?

The module runs at DDR5 4800 with CL40 latency and 1.1 V, giving your server the rated bandwidth of PC5-38400 for heavy multitasking and virtualization workloads.

How does the EC8 RDIMM interface affect real-world performance?

The EC8 registered DIMM uses a 288-pin DDR5 interface with on-module register and ECC, capping electrical load per channel so large configurations remain stable at 4800 MHz.

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