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Four green DDR4 RDIMM modules with black heatspreaders and gold contacts

A-Tech

A-Tech 512GB (4x128GB) DDR4 2666 ECC RDIMM 2S4Rx4 3DS Server RAM

SKU CH-A1KP-8DENB

Quad-channel kit of four 128 GB DDR4 ECC registered DIMMs running at 2666 MHz with CL19 latency and 1.2 V operation

  • Capacity512GB (4 x 128GB)
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered

Capacity 512GB (4 x 128GB)

  • 512 GB total capacity across four 128 GB modules for large server workloads
  • DDR4 2666 MHz speed rated at PC4-21300 for high throughput
  • ECC Registered RDIMM design detects and corrects data errors automatically
  • 2S4Rx4 octal-rank 3DS architecture packs maximum density per slot
  • 2 V standard DDR4 voltage keeps power draw low

512GB DDR4 2666 ECC RDIMM Kit

This 512GB kit contains four 128GB registered DIMMs built for DDR4 servers and workstations. Each module runs at 2666 MHz with CL19 latency and 1.20V operation. The octal-rank 3DS design targets systems that need maximum capacity per slot.

Sustained load behaviour

Registered buffering and on-die ECC keep data integrity stable during long compute runs or heavy virtualisation workloads. The 3DS stacking allows all four modules to populate a quad-channel controller without exceeding rank limits. Standard 1.2V power draw avoids extra thermal stress under continuous use.

Upgrade scope

The kit replaces lower-density RDIMM sets when the platform supports 128GB modules and 8Rx4 ranks per DIMM. It is not for desktops, laptops or any system limited to unbuffered memory. Verify the motherboard qualification list before installing.

Points forts

  • 512 GB total capacity across four 128 GB modules for large server workloads
  • DDR4 2666 MHz speed rated at PC4-21300 for high throughput
  • ECC Registered RDIMM design detects and corrects data errors automatically
  • 2S4Rx4 octal-rank 3DS architecture packs maximum density per slot
  • 2 V standard DDR4 voltage keeps power draw low

Caractéristiques

BrandA-Tech
SeriesA-Tech DDR4 Server Memory RAM
ModelA-Tech 128GB 2S4Rx4 PC4-2666V-R
Capacity512GB (4 x 128GB)
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2S4Rx4 (8Rx4 3DS/TSV)
Multi-channel KitQuad Channel Kit
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

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Questions sur cet article

How much heat and power draw should I expect from the 1.2 V DDR4 2666 registered modules when the server runs continuously?

Each 128 GB module operates at the standard DDR4 voltage of 1.2 V, so total power scales with the four-module kit; registered ECC RDIMMs add minimal overhead and run within normal server thermal envelopes for 2666 MHz CL19 parts.

What motherboard features are required for this 288-pin quad-channel 512 GB kit to function?

You need a server or workstation board with DDR4 RDIMM slots that support 2S4Rx4 3DS/TSV octal-rank modules, quad-channel architecture, and a maximum capacity of at least 512 GB across four DIMMs.

Can I mix these 2666 MHz CL19 3DS RDIMMs with lower-capacity registered ECC modules already in my system?

Mixing is possible only if the platform supports mixed-rank populations and the memory controller can train all ranks at a common 2666 MHz CL19 speed; otherwise the system will default to the lowest common denominator or fail to post.

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