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Green PCB memory module with black chips and silver contacts

Kingston Technology Corp.

Kingston Technology Corp. KSM26RS4/32MFR 32GB DDR4 2666 CL19 ECC Registered 1Rx4 288-pin DIMM server RAM

SKU CH-2EEX-4KS7R MPN KSM26RS4/32MFR

32 GB DDR4 server memory running at 2666 MHz with ECC, registered signal, CL19 latency and 1.20 V operation on a 288-pin DIMM

  • Capacity32GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V

Capacity 32GB

Rank 1Rx4

Option Micron

  • 32 GB capacity supports heavy workloads
  • ECC registered design protects data integrity
  • DDR4 2666 MHz speed enables fast throughput
  • CL19 latency delivers responsive operation
  • 288-pin DIMM fits standard server slots

32 GB DDR4 ECC Registered DIMM

This 32 GB DDR4 module runs at 2666 MHz with CL19 timings and 1.20 V operation. It uses a 288-pin registered design and single-rank 1Rx4 organisation. The combination targets servers and workstations that require error-correcting memory for data integrity.

Capacity and headroom

A single 32 GB stick provides substantial memory headroom for virtualisation hosts, database nodes and compute-intensive workloads. Registered signalling and ECC maintain stability under sustained load, while the CL19 latency keeps response predictable. Systems limited to lower-density slots or unbuffered memory cannot use this module.

Registered signal and ECC benefits

Registered buffering reduces electrical load on the memory controller, allowing larger total capacities per channel. On-die ECC corrects single-bit errors transparently, protecting critical data without software overhead. These features matter only on platforms that explicitly support registered ECC DIMMs; consumer desktop boards will not recognise the module.

Highlights

  • 32 GB capacity supports heavy workloads
  • ECC registered design protects data integrity
  • DDR4 2666 MHz speed enables fast throughput
  • CL19 latency delivers responsive operation
  • 288-pin DIMM fits standard server slots

Specifications

BrandKingston
ModelKSM26RS4/32MFR
Capacity32GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Shipping weight0.03 kg
Package size159 × 51 × 8 mm

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Questions about this item

Will this 32GB DDR4-2666 CL19 registered ECC DIMM operate correctly alongside older DDR4 modules already installed in the server?

The module runs at DDR4-2666 with CL19 timing and 1.20V voltage; the system will negotiate a common speed and latency across all populated slots.

How can I confirm this 288-pin registered ECC module is detected and running at 2666 MT/s after installation?

Check the BIOS memory information or OS reporting tools; they should show 32GB capacity, DDR4-2666 speed, CL19 timings, registered ECC status and 1Rx4 organisation.

Does the single 32GB 1Rx4 DDR4-2666 registered ECC DIMM ship alone, or are additional accessories included?

The package contains one 288-pin DIMM module only; no cables, brackets or extra components are supplied.

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