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Green circuit board with black memory chips, gold 288-pin edge connector, no heat spreader

Kingston Technology Corp.

Kingston Technology Corp. KTL-TS426E/16G 16GB DDR4 2666 CL19 ECC server RAM

SKU CH-Y5D1-8GEPP MPN KTL-TS426E/16G

16 GB DDR4-2666 ECC unbuffered DIMM with CL19 latency for server memory upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • ECC protection prevents data errors in server workloads
  • 16 GB capacity handles demanding multi-tasking and virtualisation
  • 2666 MHz DDR4 speed delivers responsive data throughput
  • CL19 latency ensures quick memory access times
  • 288-pin unbuffered DIMM fits standard server slots

Server Memory Capacity

This 16 GB DDR4 module adds ECC-protected capacity to compatible servers and desktop PCs that accept unbuffered 288-pin DIMMs. It operates at 2666 MHz with CL19 latency and 1.20 V power draw. The single-rank 2Rx8 organisation suits standard density slots.

Fit for ECC Platforms

Buyers who need error-correcting memory for data integrity in server or workstation workloads will match the specification. Systems that require registered or load-reduced DIMMs cannot use this unbuffered design. Non-ECC consumer boards that lack ECC support in the BIOS will not activate the feature.

Speed and Timing Decide Compatibility

The module runs at DDR4-2666 (PC4-21300) with CL19 timing and supports Intel XMP 2.0 profiles for automatic configuration. If the platform only qualifies faster or slower JEDEC speeds, or demands a different CAS latency, this stick will not operate at its rated specification.

How it compares

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

Price $362.99
Pricier than about 64% of the 6,523 comparable items (median $188.99).
Total capacity 16 GB
Lower than about 60% of the 6,064 comparable items (median 32 GB).
Price per GB $22.69 per GB
Pricier than about 84% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameKingston
Model nameKTLTS426E16G
Total capacity16 GB
Product type288-Pin DDR5 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL19
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Memory profilesIntel XMP 2.0
Heat spreaderNo
Power
Rated voltage1.2 V
Size & build
Shipping weight0.45 kg
Package size159 × 51 × 6 mm

Questions about this item

Will the 288-pin DDR4 DIMM fit in my server's standard DDR4 memory slots?

Yes, the module uses the standard 288-pin DDR4 DIMM form factor and operates at 1.20V, matching the physical and electrical requirements of DDR4 server slots.

How do I install this unbuffered ECC module correctly, and what step is often missed?

Align the notch with the slot key, press firmly until both retention clips click shut, then enter the BIOS to enable ECC support — many builders forget the BIOS step.

When will this 16GB CL19 DDR4-2666 module need replacement or maintenance?

The memory has no moving parts and requires no scheduled maintenance; replacement is only needed if a hardware fault occurs or capacity requirements exceed 16GB.

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