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Green circuit board with black memory chips and gold edge connectors

Kingston Technology Corp.

Kingston Technology Corp. KSM26RS8/8MRR 8GB DDR4 2666MHz ECC Registered Server RAM

SKU CH-YE8N-NMWKJ MPN KSM26RS8/8MRR

8 GB DDR4 server memory module with ECC, registered design, 2666 MHz speed and CL19 latency

  • Capacity8GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V

Capacity 8GB

Struck-through versions exist but are not stocked here.

Rank 1Rx8

Option Micron

  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity on dense server boards
  • DDR4 2666 MHz delivers 21300 MB/s peak bandwidth for responsive performance
  • Single-rank 1Rx8 layout keeps latency low at CL19 timings
  • 20 V operation reduces power draw and thermal load

8GB DDR4 ECC Registered module

This 8GB DDR4 module runs at 2666MHz with CL19 latency and 1.20V operation. It uses a 288-pin DIMM form factor with registered buffering and ECC for data integrity. The single-rank 1Rx8 design includes on-die termination and CRC support for server reliability.

Upgrade from non-ECC or slower DDR4

Replaces standard unbuffered memory in servers that require registered DIMMs with error correction. The jump is worth it when workloads demand data integrity protection and the platform supports registered modules with parity. Systems limited to unbuffered memory cannot use this module.

DDR4 2666 registered platform limits

Registered DDR4 modules require a compatible server chipset and CPU memory controller that supports buffered operation. Mixing registered and unbuffered DIMMs is not supported. Maximum capacity and population rules depend on the specific server platform specifications not detailed here.

Highlights

  • ECC protection prevents data corruption in critical workloads
  • Registered design stabilises signal integrity on dense server boards
  • DDR4 2666 MHz delivers 21300 MB/s peak bandwidth for responsive performance
  • Single-rank 1Rx8 layout keeps latency low at CL19 timings
  • 20 V operation reduces power draw and thermal load

Specifications

BrandKingston
ModelKSM26RS8/8MRR
Capacity8GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
Features8GB 2666MHZ DDR4 ECC REG CL19 DIMM 1RX8 MICRON R RAMBUS
Shipping weight0.09 kg
Package size178 × 76 × 8 mm

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does this 288-pin DDR4 DIMM fit a standard server memory slot?

Yes, the module uses the 288-pin DDR4 form factor and runs at 1.2 V, matching standard registered server slots.

What BIOS setting or step is often missed when installing this registered ECC module?

Enable ECC and registered mode in the BIOS after seating the DIMM; many builders forget to activate both features.

Will the on-die termination and CRC features on this 1Rx8 module need any future maintenance?

No, ODT and CRC are automatic hardware functions that require no user maintenance over the module's life.

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