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Green printed circuit board with black memory chips and gold edge connectors on a 288-pin DDR4 DIMM module

A-Tech

A-Tech 16GB DDR4 2666 ECC RDIMM 2Rx4 for Samsung M393A2G40EB1-CTD M393A2G40EB2-CTD server RAM

SKU CH-XFYW-KYZXY

16 GB DDR4 2666 ECC registered server memory module, CL19, 1.2 V, 2Rx4, 288-pin

  • Capacity16GB
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredRegistered
  • 16GB ECC RDIMM expands server capacity
  • 2666 MHz DDR4 speed handles demanding workloads
  • Registered 2Rx4 design stabilises multi-DIMM configurations
  • 2 V operation reduces power draw
  • 288-pin form factor fits standard DDR4 slots

Capacity and purpose

This 16GB DDR4 2666 ECC RDIMM module is built for servers and workstations that require registered memory with error correction. It replaces Samsung M393A2G40EB1-CTD and M393A2G40EB2-CTD parts in compatible systems. Buyers who need unbuffered UDIMMs or non-ECC memory for desktop platforms cannot use this module.

Build quality and connectors

The stick uses a 288-pin DIMM form factor and runs at the standard 1.20V DDR4 voltage. Registered buffering and a 2Rx4 organisation reduce electrical load on the memory controller, which helps stability in multi-module configurations. Major-brand chips are tested by the supplier before shipment.

Upgrade context

This module upgrades a system that currently runs lower-capacity DDR4 2666 RDIMMs or has empty registered DIMM slots. The jump is worth it when workloads hit memory limits and the platform supports 2Rx4 registered ECC at this speed. It does not fit systems that only accept UDIMM or LRDIMM modules.

Punti di forza

  • 16GB ECC RDIMM expands server capacity
  • 2666 MHz DDR4 speed handles demanding workloads
  • Registered 2Rx4 design stabilises multi-DIMM configurations
  • 2 V operation reduces power draw
  • 288-pin form factor fits standard DDR4 slots

Caratteristiche tecniche

BrandA-Tech
Capacity16GB
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
FeaturesMajor Brand Chips

Domande su questo articolo

What DDR4 speed and PC4 rating does this 16 GB ECC RDIMM run at?

This module operates at DDR4 2666 MHz with a PC4-21300 data rate, delivering 1.2 V standard voltage and CL19 latency for registered server workloads.

What physical slot and pin count does the 288-pin DIMM require?

It fits a standard DDR4 DIMM socket with 288 pins; the registered 2Rx4 design adds a register chip, so the motherboard must support registered ECC memory.

How do I install this RDIMM, and what step is often missed?

Power down, open the chassis, align the notch on the 288-pin edge connector, press firmly until both retention clips click, then verify in BIOS that ECC and registered mode are enabled.

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