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Green 288-pin DDR4 DIMM module with black chips and silver heatspreader labels

A-Tech

A-Tech 128GB DDR4 2666MHz ECC RDIMM Server Memory 15-105085-01

SKU CH-ZM2Y-S6875

A 128GB DDR4 2666MHz ECC registered DIMM for Cisco servers using 3DS TSV technology

  • Capacity128GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 128 GB capacity handles heavy virtualisation workloads
  • DDR4 2666 MHz speed moves data at PC4-21300 rates
  • ECC RDIMM design corrects single-bit errors automatically
  • Registered signal buffering improves stability in dense servers
  • 2 V operation matches DDR4 standard voltage

Server ECC RDIMM for Cisco UCS

This 128GB DDR4 module is built as a registered ECC DIMM for Cisco UCS servers using part numbers 15-105085-01 and UCS-MR-128G8RS-H. It targets administrators who need high-density registered memory in a single slot.

DDR4 2666 registered bandwidth ceiling

The module runs at 2666 MT/s with a PC4-21300 rating and CL19 latency at 1.20V. Registered buffering adds one cycle of command delay, so peak throughput is capped by the DDR4 2666 interface rather than the CPU memory controller.

288-pin 3DS stack in a standard slot

The 2S4Rx4 8Rx4 3DS assembly packs 128GB into one 288-pin DIMM using through-silicon vias. It fits any DDR4 RDIMM slot wired for 262-pin electricals, but the physical height may interfere with low-profile heatsinks or tight cable routing.

Puntos fuertes

  • 128 GB capacity handles heavy virtualisation workloads
  • DDR4 2666 MHz speed moves data at PC4-21300 rates
  • ECC RDIMM design corrects single-bit errors automatically
  • Registered signal buffering improves stability in dense servers
  • 2 V operation matches DDR4 standard voltage

Especificaciones

BrandA-Tech
SeriesCompatible Replacement for Cisco
Model15-105085-01, UCS-MR-128G8RS-H
Capacity128GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2S4Rx4 (8Rx4)
ChipsetMajor Brand Chipset
Features15-105085-01, UCS-MR-128G8RS-H

Preguntas sobre este artículo

Should I pick the 128 GB module or a smaller kit for my Cisco UCS server?

This listing is a single 128 GB module (1 x 128 GB). Choose it when your chassis has a free 288-pin DDR4 slot and the qualified vendor list includes the 15-105085-01 part number.

What does the 2666 MHz rating deliver once the module is installed?

The module runs at DDR4 2666 (PC4-21300) with CL19 latency at 1.20 V, providing registered ECC bandwidth suited for multi-socket server workloads.

Is the 288-pin DDR4 RDIMM interface limited by any platform cap?

The 288-pin registered DIMM uses the DDR4 electrical standard; maximum speed and capacity are governed by the CPU memory controller and system BIOS, not by the module itself.

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