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

SK hynix

SK hynix HMA82GU7CJR8N-VK 16GB DDR4-2666 ECC UDIMM server RAM

SKU CH-QD0M-F8B2V

16 GB DDR4-2666 ECC UDIMM with CL11 latency, 1.2 V operation and 2Rx8 rank for server workloads

  • Total capacity16 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • CAS latencyCL11
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank2Rx8
  • ECC protection prevents data corruption with built-in error correction
  • 16 GB capacity supports demanding server workloads
  • DDR4 2666 speed delivers high bandwidth for intensive tasks
  • 20 V operation reduces power consumption in dense deployments
  • Supermicro certified validation ensures reliable compatibility

16 GB DDR4-2666 ECC UDIMM

This 16 GB DDR4-2666 ECC UDIMM module is built for servers and workstations that require error-correcting memory without registered buffering. It suits administrators who need reliable capacity for virtualisation, database or file-serving workloads.

CL11 CAS latency and 1.20 V operation

The module runs at CL11 latency with a standard 1.20 V supply, delivering 2666 MT/s throughput under the PC4-21300 rating. These timing and voltage figures decide whether the DIMM matches the platform's memory controller requirements.

Fits 288-pin unbuffered ECC slots in dual-rank

Installation requires a motherboard with 288-pin DDR4 UDIMM slots that accept unbuffered ECC memory and support 2Rx8 organisation. The single module leaves remaining slots free for further capacity expansion up to the board's limit.

How it compares

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

Price $123.99
Cheaper than about 60% 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 $7.75 per GB
Pricier than about 54% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameSK hynix
Model nameHMA82GU7CJR8N-VK
Total capacity16 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Memory
CAS latencyCL11
ECC supportYes
Buffer typeUnbuffered
Memory rank2Rx8
Power
Rated voltage1.2 V

Questions about this item

What does the 2666 speed rating mean once the module is installed?

The module runs at 2666 MT/s with a CAS latency of 11, delivering a peak transfer rate of PC4 21300 in a system that supports DDR4 2666.

What interface does the 288-pin DDR4 connector use and what does it limit?

It uses a standard DDR4 SDRAM interface limited to 2666 MT/s and 1.2 V, so the module cannot exceed that speed or voltage.

What physical slot and clearance does this 288-pin UDIMM need?

It fits a standard 288-pin DDR4 UDIMM slot and requires the usual DIMM height clearance for an unbuffered module.

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