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Eight green DDR5 RDIMM modules with black chips, no heat spreaders, 288-pin form factor

NEMIX RAM

NEMIX RAM RS720Q-E11-RS8U 256GB (8x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-CPPJ-XRNCE MPN RS720Q-E11-RS8U

Eight registered DDR5 modules deliver 256 GB of ECC server memory at 4800 MT/s with CL40 latency for ASUS 2U4N RS720Q-E11-RS8U

  • Total capacity256 GB (8 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB total capacity for memory-intensive workloads
  • Eight 32 GB modules populate all channels
  • DDR5 4800 speed with CL40 latency
  • ECC and registered design protects data integrity
  • 1 V operation reduces server power draw

256GB DDR5 4800 ECC RDIMM kit

This 256GB kit contains eight 32GB DDR5 4800 CL40 registered DIMMs. Each module operates at 1.1V and uses a 1Rx4 organisation with on-die ECC. The 288-pin RDIMMs are validated for the ASUS RS720Q-E11-RS8U 2U4N high-density server platform.

Who this suits and who should look elsewhere

Server administrators upgrading an ASUS RS720Q-E11-RS8U chassis to the full 256GB population will find a matched, stress-tested set. Builders needing unbuffered UDIMMs, non-ECC modules, lower capacities or different speeds cannot use this registered DDR5 kit.

Deciding specification: registered ECC DDR5

The modules are 288-pin DDR5 RDIMMs with on-die ECC and registered buffering. Only systems that require registered ECC DDR5 at 4800 MT/s and accept 1Rx4 32GB modules can install this kit.

How it compares

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

Price $7,540.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (8 × 32 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $29.46 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 numberMR38400-314K8
Total capacity256 GB (8 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items256 GB (8 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Do I need an ASUS RS720Q-E11-RS8U server with DDR5 RDIMM slots to install this 256GB kit?

Yes, this kit is built for the ASUS RS720Q-E11-RS8U and requires a platform that accepts 288-pin DDR5 registered DIMMs at 1.1 V.

Will these 1Rx4 CL40 modules run at 4800 MT/s if the server also has slower DDR5 RDIMMs installed?

The memory controller will clock all channels to the slowest module present, so mixing speeds lowers the effective data rate.

How can I confirm the full 256 GB is recognised and ECC is active after installation?

Check the BIOS memory summary for 256 GB total and ECC status enabled, then run a memory diagnostic to verify error correction.

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