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Four green DDR5 RDIMM sticks, black chips, no heat spreaders

NEMIX RAM

NEMIX RAM RS720-E11-RS24U 256GB (4x64GB) DDR5 4800 ECC RDIMM memory upgrade

SKU CH-M6Q4-M3SDH MPN RS720-E11-RS24U

256 GB DDR5 4800 ECC registered server kit in four 64 GB modules for the ASUS RS720-E11-RS24U

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB total capacity across four 64GB modules for dense server workloads
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered RDIMM design detects and corrects data errors
  • 1V operating voltage reduces power draw per module
  • Validated for ASUS RS720-E11-RS24U 2U dual-socket server compatibility

System-specific DDR5 kit

This NEMIX RAM kit delivers 256 GB of DDR5 4800 registered ECC memory across four 64 GB modules. It is built for the ASUS RS720-E11-RS24U 2U dual-socket server where system-specific validation is required.

Registered ECC with 2Rx4 organisation

The modules run at 1.10 V with CL40 latency and a 2Rx4 rank layout, providing error correction and signal buffering that the platform’s memory controller expects. This specification determines whether the server will POST and operate stably.

Four-slot population in a 2U chassis

Populating four DIMM slots with this kit leaves remaining slots free for future expansion while the registered design reduces electrical load on the memory bus. Buyers needing higher capacity per module or non-ECC memory for desktop platforms should look elsewhere.

How it compares

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

Price $6,460.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.24 per GB
Pricier than about 70% 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 numberMR38400-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What does 4800 MT/s DDR5 actually deliver inside an ASUS RS720-E11-RS24U server?

The kit runs at the JEDEC-standard DDR5 4800 speed with CL40 latency, giving the maximum baseline bandwidth the platform supports without overclocking.

How does the registered ECC RDIMM interface affect usable capacity and stability?

Registered buffering and on-die ECC let the memory controller address all 256 GB reliably, correcting single-bit errors and reducing electrical load on the CPU memory bus.

Will the 288-pin DDR5 modules fit the RS720-E11-RS24U's DIMM slots without a heat-spreader clearance issue?

Yes, the bare 288-pin RDIMMs match the server's DDR5 slots exactly and have no heat spreader to interfere with the 2U chassis airflow path.

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