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Green 288-pin DDR4 DIMM with black heatspreader

Kingston Technology Corp.

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

SKU CH-265Z-B8ZXG MPN KSM26RS4/32HCR

32 GB DDR4 server memory module running at 2666 MHz with ECC and registered signal processing for stable operation

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

Capacity 32GB

Struck-through versions exist but are not stocked here.

Rank 1Rx4

Option Hynix

  • 32 GB capacity handles heavy workloads and virtualization
  • 2666 MHz DDR4 speed delivers high throughput for server applications
  • ECC registered design detects and corrects data errors automatically
  • CL19 latency timing ensures responsive memory access
  • 288-pin DIMM form factor fits standard server motherboards

32 GB DDR4-2666 ECC Registered DIMM

This Kingston KSM26RS4/32HCR module provides 32 GB of DDR4-2666 server memory with ECC and registered signal processing. It operates at CL19 latency and 1.20 V on a 288-pin DIMM form factor. The single-rank 1Rx4 design targets data-centre workloads that demand error correction and signal stability.

Who should avoid this module

Builders needing non-ECC unbuffered memory for desktop boards cannot use this registered ECC stick. Systems limited to speeds below DDR4-2666 or requiring dual-rank density per module should look elsewhere. Laptops and compact PCs using SO-DIMM slots are physically incompatible.

Single-rank 1Rx4 registered ECC

The 1Rx4 registered ECC organisation is the specification that decides fit. It reduces electrical load on the memory controller while adding error correction and command buffering required by many server platforms. Verify your motherboard supports registered ECC DDR4 before purchasing.

Highlights

  • 32 GB capacity handles heavy workloads and virtualization
  • 2666 MHz DDR4 speed delivers high throughput for server applications
  • ECC registered design detects and corrects data errors automatically
  • CL19 latency timing ensures responsive memory access
  • 288-pin DIMM form factor fits standard server motherboards

Specifications

BrandKingston
ModelKSM26RS4/32HCR
Capacity32GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx4
Shipping weight0.09 kg
Package size140 × 43 × 8 mm

Other versions of this model

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Questions about this item

Should I pick the 32 GB single-rank module or a dual-rank alternative?

This module provides 32 GB in a single-rank 1Rx4 layout, which places less load on the memory controller and can allow higher total capacity on boards with many slots.

What does the 2666 MHz rating mean once the DIMM is installed in a server?

The module runs at 2666 MHz DDR4-2666/PC4-21333 with CL19 19-19-19 timing at 1.20 V, delivering the rated speed when the platform supports that data rate.

How does the registered 288-pin DDR4 interface affect real-world use?

The registered 288-pin DDR4 DIMM adds a buffer for signal integrity on multi-DIMM channels, and ECC corrects single-bit errors for server-grade reliability.

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