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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS720-E11-RS24U 128GB (8x16GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-3GNN-5KS8T MPN RS720-E11-RS24U

Eight-module kit provides 128 GB of DDR5 ECC registered memory at 4800 MT/s with CL40 latency for the ASUS RS720-E11-RS24U server

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128 GB total capacity across eight 16 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth for server workloads
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces power draw
  • Validated for ASUS RS720-E11-RS24U 2U dual-socket server

128GB DDR5-4800 ECC RDIMM kit

This 128GB kit comprises eight 16GB DDR5-4800 registered DIMMs built for the ASUS RS720-E11-RS24U 2U dual-socket server. ECC and registered signalling protect data integrity in mission-critical workloads. It targets IT teams upgrading memory capacity in that specific platform.

1Rx8 organisation and 1.10V operation

Each module uses a single-rank 1Rx8 layout with Samsung, Micron or Hynix chips running at 1.10V. The registered buffer reduces electrical load on the memory controller, allowing all eight slots to be populated without signal degradation. No heat spreaders are fitted, so airflow in the 2U chassis must handle cooling.

DDR5-4800 CL40 registered limits

The DDR5-4800 CL40 JEDEC standard sets the baseline bandwidth and latency for this registered ECC kit. Registered modules add one clock cycle of address/command delay compared with unbuffered DIMMs. Mixed-rank or mixed-speed configurations are not supported by this kit, so all slots must use identical modules.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $3,798.99
Pricier than about 76% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $29.68 per GB
Pricier than about 84% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K8
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items128 GB (8 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the eight 16 GB modules need any periodic maintenance or replacement?

The modules have no moving parts and no heat spreaders, so no routine maintenance is required.

What limit appears first when the kit runs at DDR5 4800 continuously?

The registered DDR5 4800 CL40 timing at 1.10 V sets the sustained throughput ceiling.

How much heat and power does the 128 GB kit produce under all-day load?

Each 1Rx8 module operates at 1.10 V without a heat spreader, keeping thermal output low for server airflow.

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