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Green circuit board with black memory chips, gold edge connector, no heat spreader

SK hynix

SK hynix HMAA8GL7AMR4N-VK 64GB DDR4-2666 CL19 ECC Load Reduced server RAM

SKU CH-2YB3-46P6S MPN HMAA8GL7AMR4N-VK

64GB DDR4-2666 CL19 ECC Load Reduced DIMM enables higher memory density per channel than standard RDIMMs

  • Capacity64GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Voltage1.20V
  • ECCYes
  • 64 GB capacity powers dense virtualization and HPC workloads
  • Load Reduced design removes channel rank limits for more DIMMs per channel
  • ECC protection detects and corrects memory errors in mission-critical servers
  • DDR4 2666 at 1.20 V delivers bandwidth with lower power draw
  • 288-pin DIMM with CL19 latency fits standard server memory slots

64 GB DDR4-2666 LRDIMM for dense server builds

This SK hynix module delivers 64 GB of DDR4-2666 memory in a 288-pin load-reduced DIMM. It targets administrators who need to maximise installed capacity on platforms that support LRDIMM technology. The registered buffer and ECC protect data integrity in virtualization, HPC and in-memory database workloads.

Verify LRDIMM support and avoid mixing with UDIMMs

Confirm the motherboard and CPU memory controller accept load-reduced DDR4 modules before ordering. ECC UDIMMs and ECC registered DIMMs cannot be mixed; all existing UDIMMs must be removed if this module is installed. The system must also be a server platform, as these modules are not compatible with standard desktop boards.

Sustained operation at 1.20 V

The load-reduced architecture lowers the electrical load on each channel, allowing more DIMMs per channel while maintaining 2666 MT/s throughput. CAS latency of 19 and 1.20 V operation keep power draw predictable during extended virtualization or big-data runs. No heat spreader is fitted, so chassis airflow must handle the thermal load.

Pontos fortes

  • 64 GB capacity powers dense virtualization and HPC workloads
  • Load Reduced design removes channel rank limits for more DIMMs per channel
  • ECC protection detects and corrects memory errors in mission-critical servers
  • DDR4 2666 at 1.20 V delivers bandwidth with lower power draw
  • 288-pin DIMM with CL19 latency fits standard server memory slots

Especificações

BrandSK hynix
ModelHMAA8GL7AMR4N-VK
Capacity64GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Voltage1.20V
ECCYes
Buffered/RegisteredLoad Reduced
Rank4Rx4
ChipsetMajor Brand Chipset
Heat SpreaderNo
FeaturesEliminate channel ranking limitations associated with standard RDIMMs
Enable more installed DIMMs per channel for greater memory density
More memory bandwidth than standard RDIMMs
More energy efficient than standard RDIMMs
100% component and module tested to mission-critical server standards
Compatible with OEM servers and warranties
Optimized for Intel Xeon processor product families

Perguntas sobre este artigo

What comes in the box with this HMAA8GL7AMR4N-VK module and is any extra hardware needed?

The listing supplies the single 64GB 288-pin DDR4 LRDIMM; no cables, brackets or additional components are included and none are required for installation in a compatible server slot.

Should I choose this 64GB LRDIMM or a smaller registered DIMM for my Supermicro single-socket blade?

Pick this 64GB load-reduced module when you need to exceed the per-channel rank limit of standard RDIMMs; it lets you populate more slots per channel for higher total capacity.

What does the 2666 MT/s rating mean once the DIMM is running in a live server?

The module transfers data at 2666 million transfers per second at CL19 latency and 1.20 V, delivering PC4-21300 bandwidth while the load-reduced buffer reduces electrical load on the memory controller.

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