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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 1TB (8x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-3DGC-4RT6X MPN RS720-E11-RS12U

Eight 128 GB DDR5 ECC registered DIMMs deliver 1 TB at 4800 MT/s CL40 for ASUS RS720-E11-RS12U servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 1 TB capacity from eight 128 GB modules
  • DDR5 4800 speed delivers 38 400 MT/s bandwidth
  • ECC registered design protects data integrity in servers
  • 1 V operation reduces power draw per module
  • Validated for ASUS RS720-E11-RS12U 2U dual-socket systems

Purpose-built 1 TB server kit

This 1 TB kit contains eight 128 GB DDR5 4800 CL40 ECC registered DIMMs validated for the ASUS RS720-E11-RS12U 2U dual-socket server. It targets IT teams who need maximum memory capacity in that specific platform without mixing module sizes.

Registered ECC changes reliability profile

Registered buffering and on-die ECC let the memory controller address all eight quad-rank modules while correcting single-bit errors, which is required for the sustained workloads this server runs. The 1.1 V operating voltage matches the platform specification.

DDR5 4800 ceiling limits throughput

The PC5-38400 data rate is the baseline DDR5 speed, so bandwidth scales only with channel count and rank population rather than higher clock options. Builders who need faster memory transfer rates must select a platform qualified for higher DDR5 speeds.

How it compares

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

Price $30,452.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $30.45 per GB
Pricier than about 87% 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 numberMR38400-744K8
Total capacity1 TB (8 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items1 TB (8 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the eight 128 GB modules need any firmware updates or periodic replacement?

The modules are standard DDR5 ECC RDIMMs with no firmware; they are solid-state and have no scheduled replacement interval.

What thermal or power limit appears first when the kit runs continuously at 4800 MT/s?

Each module operates at 1.1 V with a CL40 latency; sustained load is limited by the server’s memory-controller thermal envelope rather than the DIMMs themselves.

How much heat and noise does the 1 TB kit add when the server runs all day?

The modules have no heat spreaders and draw 1.1 V each, so they add minimal heat and zero acoustic noise; system fans handle any extra thermal load.

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