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Green printed circuit board with black memory chips and gold edge connectors

A-Tech

A-Tech 16GB DDR4 2666 ECC UDIMM 2Rx8 CL19 1.2V 288-Pin Server RAM

SKU CH-DG1N-HTQKT

16 GB DDR4 ECC UDIMM running at 2666 MHz CL19 for servers and workstations

  • CAS latencyCL19
  • Memory rank2Rx8
  • Product type288-Pin DDR4 SDRAM
  • ECC protection guards data integrity with 2Rx8 DDR4 architecture
  • 2666 MHz speed accelerates server workloads via PC4-21300 bandwidth
  • 16 GB capacity expands memory headroom for virtualisation tasks
  • 2 V operation keeps power draw low in dense racks
  • 288-pin UDIMM form factor fits standard DDR4 server slots

16 GB DDR4 ECC UDIMM for servers

This 16 GB DDR4 2666 module adds ECC unbuffered memory to compatible servers and workstations. It runs at 1.2 V with CL19 latency and a 2Rx8 dual-rank layout on a 288-pin DIMM. The PC4-21300 rating matches the DDR4 2666 specification.

Suits ECC UDIMM platforms only

The module is built for systems that explicitly support DDR4 ECC unbuffered DIMMs. It will not work in desktop or laptop computers that require non-ECC or buffered memory. Buyers who need non-ECC memory for consumer boards should look elsewhere.

Tested modules with lifetime warranty

Every unit undergoes quality assurance testing before shipment to verify reliable operation. A lifetime warranty covers the module, and US-based technical support is available for installation guidance and compatibility questions.

How it compares

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

Price $120.99
Cheaper than about 61% of the 6,523 comparable items (median $188.99).

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
Product type288-Pin DDR4 SDRAM
Memory
CAS latencyCL19
Memory rank2Rx8

Questions about this item

Do I need a motherboard that supports DDR4 ECC UDIMM modules for this 16 GB 2666 MHz stick to work?

Yes, the module is a 288‑pin DDR4 ECC UDIMM running at 2666 MHz and requires a server or workstation board that accepts DDR4 ECC unbuffered memory.

Can I mix this dual‑rank 2Rx8 CL19 module with existing single‑rank DDR4 2666 ECC UDIMMs in the same system?

Mixing ranks is possible on many platforms, but the memory controller will run all modules at the lowest common speed and latency; check your system manual for supported rank combinations.

How can I confirm the module is running at 2666 MHz with ECC active after installation?

Enter the BIOS or use an OS tool such as dmidecode or CPU‑Z; both will show the configured speed of 2666 MHz and report ECC as enabled for the 16 GB module.

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