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

SK hynix

SK hynix HMA82GU7CJR8N-VK 16GB DDR4 2666 CL19 ECC UDIMM 2Rx8 server RAM

SKU CH-YF3Y-A3C63

16 GB DDR4 2666 ECC UDIMM with CL19 latency, 2Rx8 rank and 1.2 V operation

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL11
  • Voltage1.20V
  • ECCYes
  • ECC protection prevents data corruption in critical workloads
  • 2666 MHz DDR4 speed delivers high bandwidth for demanding applications
  • 2 V operation reduces power consumption and heat output
  • 2Rx8 dual-rank design increases memory density per slot
  • Supermicro certified for validated compatibility and reliability

Capacity and purpose

This module provides 16GB of DDR4 ECC UDIMM memory for servers and workstations that require error correction. The 2Rx8 organisation and CL19 timing suit applications where data integrity matters more than maximum throughput.

Build integration

The 288‑pin unbuffered design fits standard DDR4 UDIMM slots without registered buffering. ECC support frees the system from silent data corruption, while 1.20V operation keeps power draw low for dense configurations.

Sustained operation

Supermicro certification confirms validation for continuous workloads in qualified platforms. The DDR4 2666 rating delivers steady bandwidth under load, and the ECC mechanism corrects single‑bit errors during extended runtime.

Puntos fuertes

  • ECC protection prevents data corruption in critical workloads
  • 2666 MHz DDR4 speed delivers high bandwidth for demanding applications
  • 2 V operation reduces power consumption and heat output
  • 2Rx8 dual-rank design increases memory density per slot
  • Supermicro certified for validated compatibility and reliability

Especificaciones

BrandSK hynix
ModelHMA82GU7CJR8N-VK
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL11
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank2Rx8

Preguntas sobre este artículo

At what CAS latency does the HMA82GU7CJR8N-VK run when pushed continuously at 2666 MT/s?

The module operates at CL19 under sustained 2666 MT/s loads, matching its rated timing for server workloads.

How much heat and noise does this 16 GB ECC UDIMM add when running all day in a rack?

At 1.20 V the unbuffered 2Rx8 sticks draw minimal power, producing little extra heat and no audible noise in a server chassis.

Which motherboard feature must my system already provide for this DDR4 288-pin ECC memory to function?

The board needs DDR4 UDIMM slots with ECC support; registered or load-reduced slots will not accept these unbuffered modules.

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