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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

  • Total capacity32 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • Buffer typeRegistered

Capacity 32GB

Rank 1Rx4

Model 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.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $280.99
Pricier than about 59% of the 6,523 comparable items (median $188.99).
Total capacity 32 GB
Typical for this category: the median of 6,064 items is 32 GB.
Price per GB $8.78 per GB
Pricier than about 62% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKSM26RS4/32MFR
Total capacity32 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Power
Rated voltage1.2 V
Size & build
Shipping weight0.03 kg
Package size159 × 51 × 8 mm

Other versions of this model

5 more in the same range

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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