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Green 288-pin DDR4 UDIMM module with black memory chips and silver edge connectors

A-Tech

A-Tech 16GB DDR4 2666 ECC UDIMM 2Rx8 CL19 1.20V server RAM

SKU CH-HVC1-R4QEY

16 GB DDR4 2666 ECC unbuffered UDIMM module with CL19 latency for servers

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • 16 GB capacity for larger workloads
  • DDR4 2666 speed with CL19 latency
  • ECC UDIMM protects data integrity
  • 2Rx8 dual-rank organisation boosts density
  • 20 V standard voltage for efficient operation

16 GB DDR4 ECC UDIMM for servers

This 16 GB DDR4 2666 MHz ECC UDIMM module is built for servers and workstations that require error-correcting unbuffered memory. It operates at the standard 1.20 V DDR4 voltage with CL19 latency and a 2Rx8 rank configuration. The 288-pin DIMM uses major-brand chips and serves as a direct replacement for Hynix HMA82GU7CJR8N-VK and HMA82GU8CJR8N-VK modules.

Compatibility checklist before purchase

Verify that your motherboard supports DDR4 ECC UDIMM modules at 2666 MHz and accepts 16 GB single-rank or dual-rank sticks. Confirm the system requires unbuffered ECC rather than registered ECC, as the two types are not interchangeable. Check the maximum memory capacity per slot and the total number of available 288-pin slots in your chassis. Ensure the BIOS is updated to recognise 2Rx8 density modules.

Ideal for ECC workstation upgrades

Suits administrators upgrading compatible Dell, HP, Lenovo or Supermicro platforms that specify ECC UDIMM memory. Not suited for consumer desktop boards that lack ECC support or for servers requiring registered RDIMM or LRDIMM modules. Buyers needing higher densities per module or faster speeds should look at other specifications.

How it compares

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

Price $147.99
Cheaper than about 56% 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 $9.25 per GB
Pricier than about 64% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

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

Questions about this item

What is included in the box and do I need to buy anything else?

The box contains one 16 GB DDR4 2666 ECC UDIMM module. No extra parts are required for installation.

Should I choose this 16 GB 2Rx8 CL19 module or a different capacity?

This single 16 GB 2Rx8 CL19 stick suits systems that support unbuffered ECC DDR4 2666; add matching modules to reach your desired total capacity.

What does the 2666 MHz PC4-21300 rating mean once the module is installed?

The module will run at 2666 MHz with CL19 latency at 1.20 V, delivering PC4-21300 bandwidth in compatible server or workstation boards.

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