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Green circuit board with black memory chips, 260-pin DDR4 SO-DIMM, no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KSM26SES8/16MF 16GB DDR4 2666 CL19 ECC SO-DIMM server RAM

SKU CH-31M9-0670K MPN KSM26SES8/16MF

16 GB DDR4 SO-DIMM with ECC runs at 2666 MHz CL19 for servers and workstations

  • Capacity16GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V

Capacity 16GB

Struck-through versions exist but are not stocked here.

Rank 1Rx8

Option Micron

  • ECC protection safeguards data integrity in critical workloads
  • 16 GB capacity handles multiple applications simultaneously
  • 2666 MHz speed delivers responsive performance for demanding tasks
  • CL19 latency ensures fast, reliable memory response
  • Unbuffered 260-pin SO-DIMM fits compatible servers and workstations

Server-grade SO-DIMM with ECC

This 16 GB DDR4 module runs at 2666 MHz with CL19 timing and operates at 1.20 V. It is built for notebooks, workstations and servers that require error-correcting memory in a compact 260-pin form factor. The unbuffered single-rank design suits systems that do not use registered DIMMs.

Check slot type and ECC support

Verify that your platform accepts 260-pin DDR4 SO-DIMMs and can enable ECC on unbuffered modules. Some consumer notebooks disable ECC in firmware even when the hardware allows it. Confirm the maximum per-slot capacity your motherboard or laptop specifies before ordering.

Steady throughput for long workloads

Without a heat spreader the module relies on chassis airflow, so sustained write-heavy tasks such as database commits or virtual-motion hosting will warm the chips. The fixed 1.20 V and relaxed 19-19-19 timings keep power draw predictable during extended runs.

Highlights

  • ECC protection safeguards data integrity in critical workloads
  • 16 GB capacity handles multiple applications simultaneously
  • 2666 MHz speed delivers responsive performance for demanding tasks
  • CL19 latency ensures fast, reliable memory response
  • Unbuffered 260-pin SO-DIMM fits compatible servers and workstations

Specifications

BrandKingston
ModelKSM26SES8/16MF
Capacity16GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
Heat SpreaderNo
Shipping weight0.05 kg
Package size127 × 76 × 8 mm

Other versions of this model

2 more in the same range

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

Questions about this item

Does the single 16GB DDR4-2666 SO-DIMM come alone or with extra parts?

The module ships by itself; no heat spreader, cables, tools or additional memory sticks are included.

When should I pick this 1Rx8 CL19 stick instead of a dual-rank or lower-latency alternative?

Choose it when your server or workstation needs unbuffered ECC memory at 2666 MT/s and has a free 260-pin SO-DIMM slot for a single-rank 16GB upgrade.

What does the 2666 MT/s rating deliver once the stick is installed in a compatible system?

It provides up to 2666 million transfers per second at CL19 timing and 1.20V, giving the rated bandwidth for ECC workloads on supported DDR4 platforms.

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