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Green circuit board DDR4 memory module with black chips and gold edge connectors

Kingston Technology Corp.

Kingston Technology Corp. KSM26ES8/8HD 8GB DDR4 2666 CL19 ECC Unbuffered server RAM

SKU CH-YDR0-R5AM8 MPN KSM26ES8/8HD

8 GB DDR4 ECC unbuffered DIMM running at 2666 MHz with CL19 timing at 1.20 V

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

Capacity 8GB

Rank 1Rx8

Option Hynix

  • ECC protection prevents data corruption for server reliability
  • 2666 MHz DDR4 speed delivers responsive system performance
  • 20 V operation reduces power draw and heat output
  • Unbuffered design lowers latency for direct memory access
  • 288-pin DIMM form factor fits standard server slots

Capacity and purpose

This 8 GB DDR4 module is built for entry-level servers and workstations that require error-correcting memory without registered buffering. The unbuffered design keeps latency low for single-socket boards that do not support registered DIMMs. It suits administrators who need basic ECC protection on a budget. Builders needing larger capacities or registered modules should look elsewhere.

Thermals noise and power

Operating at 1.20 V, the module draws minimal power and generates little heat under normal server workloads. Standard DDR4 cooling airflow in a rack chassis is sufficient; no additional heatsinks or active cooling are required. Silent operation is assured because the component has no moving parts. The low voltage also reduces strain on the memory controller during sustained loads.

Build and connectors

The 288-pin DIMM uses a single-rank 1Rx8 organisation with CL19 19-19-19 timings for straightforward installation in standard DDR4 slots. Gold-edge contacts resist oxidation in long-term deployments. The unbuffered layout means the module plugs directly into consumer-style server boards without registered-buffer support. Systems requiring registered or load-reduced DIMMs cannot use this part.

Points forts

  • ECC protection prevents data corruption for server reliability
  • 2666 MHz DDR4 speed delivers responsive system performance
  • 20 V operation reduces power draw and heat output
  • Unbuffered design lowers latency for direct memory access
  • 288-pin DIMM form factor fits standard server slots

Caractéristiques

BrandKingston
SeriesPremier Series
ModelKSM26ES8/8HD
Capacity8GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
Poids d’expédition0.09 kg
Dimensions du colis152 × 76 × 5 mm

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Questions sur cet article

How do I install this 288-pin DDR4 DIMM and what step do people often miss?

Align the notch on the module with the slot key, press down firmly until both side clips click into place, and ensure the motherboard is powered off and unplugged first.

What maintenance or replacement will this 8GB ECC module need over time?

No routine maintenance is required; keep the contacts clean and replace the module only if memory errors appear or a larger capacity is needed.

What limit appears first when this CL19 2666 MHz kit runs under sustained load?

The CL19 latency at 2666 MHz sets the throughput ceiling; sustained heavy workloads will hit that timing bound before voltage or thermal limits.

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