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Four green DDR4 RDIMM modules with black chips and gold contacts

A-Tech

A-Tech 256GB (4x64GB) DDR4 2666 ECC RDIMM 2S2Rx4 Server RAM

SKU CH-S912-4Q853

A 256 GB quad-channel kit of four 64 GB DDR4 2666 MHz ECC registered DIMMs with CL19 latency and 1.2 V operation

  • Capacity256GB (4 x 64GB)
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered

Capacity 256GB (4 x 64GB)

  • 256 GB total capacity for large server workloads with four 64 GB modules
  • DDR4 2666 MHz speed rated at PC4-21300 for high data throughput
  • ECC registered RDIMM design detects and corrects memory errors automatically
  • Quad-rank 3DS/TSV architecture packs maximum density into each 288-pin DIMM
  • 20 V standard DDR4 voltage keeps power draw low per module

Server-grade DDR4 kit for multi-socket systems

This 256 GB quad-channel kit contains four 64 GB registered ECC DIMMs built for DDR4 2666 servers and workstations. The modules operate at the standard 1.20 V and present a 2S2Rx4 quad-rank 3DS layout that multi-socket platforms expect. Desktop or laptop boards cannot use this memory.

Thermals and power at rated speed

Each DIMM runs at the JEDEC 1.20 V DDR4 voltage so power draw stays within the server platform's thermal budget. Registered buffering reduces electrical load on the memory controller, helping keep signal integrity stable under sustained workloads. No active cooling is required beyond the chassis airflow the system already provides.

Build quality and 288-pin implications

Major-brand chips on a 288-pin RDIMM PCB undergo full quality-assurance testing before shipping. The quad-rank 3DS/TSV organisation means each module presents four logical ranks, so the host must support 4Rx4 population rules and correct channel seating order. Verify the platform manual for supported rank-per-channel limits and slot-filling sequences before installation.

Puntos fuertes

  • 256 GB total capacity for large server workloads with four 64 GB modules
  • DDR4 2666 MHz speed rated at PC4-21300 for high data throughput
  • ECC registered RDIMM design detects and corrects memory errors automatically
  • Quad-rank 3DS/TSV architecture packs maximum density into each 288-pin DIMM
  • 20 V standard DDR4 voltage keeps power draw low per module

Especificaciones

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 64GB 2S2Rx4 PC4-2666V-R
Capacity256GB (4 x 64GB)
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2S2Rx4 (4Rx4 3DS/TSV)
Multi-channel KitQuad Channel Kit
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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Preguntas sobre este artículo

How do I install these 288-pin DDR4 RDIMM modules in a quad-channel server, and what step is often missed?

Power down the server, open the chassis, align each 64 GB module's notch with the slot key, press firmly until the ejector clips lock on both sides, then verify in BIOS that all four channels report 2666 MHz at CL19.

What maintenance or replacement will this 256 GB ECC RDIMM kit need over its service life?

No routine maintenance is required; the modules run at 1.20 V with major-brand chips and ECC error correction, so replacement only occurs if a module fails or a future platform upgrade demands a different memory generation.

What limit appears first when this quad-rank 3DS kit runs sustained workloads at 2666 MHz?

The four quad-rank 3DS modules place maximum electrical load on each memory channel, so the platform's memory controller typically hits its rank-per-channel limit before thermal or bandwidth ceilings become a factor.

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