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Eight green DDR5 RDIMM modules, bare circuit boards, 288 pins each, no heat spreaders

NEMIX RAM

NEMIX RAM RS700A-E12-RS12U 256GB (8x32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-8Y3F-AGZPX MPN RS700A-E12-RS12U

Eight registered DDR5 modules add 256 GB of ECC server memory at 4800 MT/s with CL40 latency

  • 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 across eight 32 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operating voltage reduces power draw
  • Validated for ASUS RS700A-E12-RS12U 1U dual-processor server

ASUS 1U dual-processor server upgrade

This 256GB kit is built for the ASUS RS700A-E12-RS12U 1U dual-processor server. It contains eight registered DDR5 ECC RDIMM modules that install directly into the system board. IT teams use it to expand memory capacity in dense rack deployments.

256GB DDR5 4800 CL40 capacity

Eight 32GB 1Rx4 modules deliver 256GB at 4800 MT/s with CL40 latency. Registered buffering and ECC protect data integrity under sustained server workloads. The kit fills all slots for maximum density in this platform.

1.10V operation without heat spreaders

Modules run at the standard 1.10V DDR5 voltage and have no integrated heat spreaders. They rely on the server's directed airflow for cooling in the 1U chassis. Power draw scales with the fully populated configuration.

How it compares

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

Price $7,227.99
Pricier than about 83% 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 $28.23 per GB
Pricier than about 79% 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

Will the eight 32 GB DDR5 4800 CL40 RDIMMs run alongside older DDR5 modules I keep in the ASUS RS700A-E12-RS12U?

Mixing modules is possible when speed, voltage, rank and ECC type match; this kit uses 1.10 V, CL40, 1Rx4 registered DDR5, so any retained DIMMs must share those exact specifications to avoid instability.

How can I confirm the 256 GB kit is operating at DDR5 4800 with ECC active after installation?

Enter the server BIOS or UEFI and verify the memory frequency reads 4800 MT/s, total capacity shows 256 GB, and ECC status reports enabled or active for all eight slots.

What ships in the box and what must I source separately for the RS700A-E12-RS12U upgrade?

The package contains eight 32 GB 288-pin DDR5 4800 CL40 1.10 V ECC registered RDIMMs; no heat spreaders, cables, tools or additional hardware are included.

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