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Eight green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM RS720Q-E11-RS8U 1TB (8x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-Q6Y6-T5NZM MPN RS720Q-E11-RS8U

Eight 128 GB DDR5 ECC registered modules deliver 1 TB at 4800 MHz with CL40 latency and 1.1 V operation

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB capacity with eight 128GB modules for dense server workloads
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered RDIMM design protects data integrity in critical systems
  • Low 1.10V operating voltage reduces power draw per module
  • Validated for ASUS RS720Q-E11-RS8U 2U4N high-density server platform

Target Server Build

This 1 TB memory kit contains eight 128 GB DDR5 RDIMM modules rated at 4800 MT/s with CL40 latency. It is built for the ASUS RS720Q-E11-RS8U 2U4N high-density server platform and provides ECC error correction plus registered buffering for mission-critical workloads.

Build Integration

Each module uses the standard 288-pin DDR5 RDIMM form factor and operates at 1.1 V, matching the platform’s native memory voltage. The 4Rx4 organisation delivers high capacity per slot, leaving remaining DIMM sockets free for future expansion within the chassis limits.

Sustained Operation

Modules are stress-tested under load to verify stability during continuous enterprise workloads. ECC and registered operation maintain data integrity over long periods, while the major OEM DRAM chips provide consistent throughput without thermal throttling in the server environment.

How it compares

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

Price $29,662.99
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 $29.66 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 numberMR38400-744K8
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

What is the CAS latency of these DDR5 4800 ECC RDIMMs?

The modules run at CL40 CAS latency, which is the timing figure specified for this 4800 MT/s registered kit.

How much heat do the 4Rx4 registered DIMMs generate when the server runs continuously?

Each stick operates at 1.10 V without a heat spreader, so thermal output depends on your chassis airflow rather than an integrated cooler.

Which server chassis is this 1 TB kit validated for?

The kit is built for the ASUS RS720Q-E11-RS8U 2U4N high-density server and matches its 288-pin DDR5 RDIMM slots.

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