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Green 288-pin DDR4 RDIMM module with black chips and silver label

A-Tech

A-Tech 16GB DDR4 2666 ECC RDIMM 2Rx8 CL19 1.2V Server RAM

SKU CH-XC0N-5CE76

16 GB DDR4 2666 ECC registered DIMM for server and workstation upgrades

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • ECC protection prevents data corruption with registered DDR4 design
  • 16 GB capacity handles heavy workloads on a single 288-pin module
  • 2666 MHz DDR4 speed delivers high bandwidth for server tasks
  • CL19 latency at 1.20 V balances performance and power efficiency
  • 2Rx8 rank organisation optimises memory density for registered DIMM slots

What this module is

This is a 16 GB DDR4 2666 MHz ECC registered DIMM built with major-brand chips on a 288-pin form factor. It runs at 1.2 V with CL19 latency and a 2Rx8 organisation for server and workstation platforms.

Who it suits and who should look elsewhere

It suits administrators upgrading Kingston KTH-PL426D8/16G, KSM26RD8/16HCI, KTL-TS426D8/16G, KSM26RD8/16MEI, KTD-PE426D8/16G or KSM26RD8/16HAI part numbers in compatible systems. Builders needing non-ECC unbuffered memory or a different speed grade should look elsewhere.

How it fits into a build

The module plugs into a standard DDR4 288-pin registered DIMM slot and draws 1.2 V at the rated frequency. It frees capacity headroom for virtualisation or database workloads while leaving other memory channels available for further expansion.

How it compares

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

Price $130.99
Cheaper than about 59% 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 $8.19 per GB
Pricier than about 58% of the 6,064 comparable items (median $7.25 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameA-Tech
Total capacity16 GB
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

Does my server need a registered DIMM slot and ECC support to run this 2666 MHz CL19 module?

Yes — the module is a registered ECC RDIMM, so the motherboard must accept registered DDR4 DIMMs and have ECC enabled in the BIOS for it to function.

Will the 2Rx8 organisation of this stick work in a channel that currently uses 1Rx4 modules?

The 2Rx8 rank layout is independent of the existing 1Rx4 modules; the memory controller treats each rank separately, so the stick can share a channel as long as the platform supports mixed-rank populations.

How do I confirm the module is running at 2666 MT/s with CL19 timings after installation?

Check the BIOS memory information screen or a utility such as CPU-Z; it should report DDR4-2666, CL19-19-19 and 1.20 V for the installed module.

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