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Eight green DDR5 RDIMM sticks with black chips in a row

NEMIX RAM

NEMIX RAM RS700A-E12-RS4U 256GB (8×32GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-2R5R-K9YGF MPN RS700A-E12-RS4U

256GB kit of eight 32GB DDR5 4800 CL40 ECC registered RDIMMs for the ASUS RS700A-E12-RS4U server

  • 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 rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operating voltage reduces power draw
  • 288-pin form factor fits ASUS RS700A-E12-RS4U servers

256GB DDR5 4800 ECC RDIMM kit

This 256GB memory kit contains eight 32GB DDR5 4800 registered DIMMs with ECC and a CAS latency of CL40. The modules operate at 1.1V and use a 288-pin form factor with 1Rx4 organisation. They are built for the ASUS RS700A-E12-RS4U dual-processor 1U server.

Who this suits and who it does not

The kit suits administrators upgrading or populating the named ASUS 1U server with validated ECC registered memory. It does not suit builds that need unbuffered DIMMs, non-ECC modules, a different pin count, or a lower total capacity than 256GB.

The specification that decides fit

The decisive specification is the DDR5 4800 registered ECC RDIMM type matched to the ASUS RS700A-E12-RS4U qualified-vendor list. Only modules with this exact registration, speed, voltage and pin-out will post reliably in that platform.

How it compares

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

Price $7,659.99
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 $29.92 per GB
Pricier than about 85% 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 1.1V DDR5 modules increase heat or power draw when the server runs continuously?

Each module operates at 1.10V, the standard voltage for DDR5, so power draw per DIMM stays at the JEDEC baseline even under sustained load.

Does the ASUS RS700A-E12-RS4U motherboard need a specific BIOS version or CPU generation to recognise the 8×32GB kit?

The kit is validated for the ASUS RS700A-E12-RS4U platform; install all eight 288-pin RDIMMs in the correct slots and the system will detect the full 256GB at 4800 MT/s.

Can I keep existing 1Rx4 DDR5 RDIMMs in the other channels while adding this 256GB kit?

Yes, provided the remaining modules are also DDR5 1Rx4 ECC registered DIMMs, the memory controller will train all channels to the common 4800 MT/s CL40 speed.

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