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Two green DDR5 RDIMM modules, bare circuit boards with black chips, 288 pins each

NEMIX RAM

NEMIX RAM RS700A-E12-RS12U 256GB (2x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-0GRR-47HZ9 MPN RS700A-E12-RS12U

256GB DDR5 4800 ECC registered RDIMM kit (2×128GB) validated for ASUS RS700A-E12-RS12U 1U dual-processor servers

  • Capacity256GB (2 x 128GB)
  • SpeedDDR5 4800 (PC5 38400)
  • ECCYes
  • Buffered/RegisteredRegistered
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • Voltage1.10V
  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design protects data integrity under load
  • 1 V operation reduces power draw per module
  • Validated for ASUS RS700A-E12-RS12U 1U dual-processor servers

256GB DDR5 ECC RDIMM kit

This 256GB kit contains two 128GB DDR5 modules rated at 4800MHz with CL40 latency. Each module is a 288-pin registered DIMM with ECC and 4Rx4 organisation, operating at 1.1V. The kit is validated for the ASUS RS700A-E12-RS12U 1U dual-processor server.

Who this suits and who it does not

IT teams upgrading the named ASUS 1U server to its full 256GB capacity will find a matched, tested pair. Buyers who need a different capacity, a non-ECC module, or memory for another platform should look elsewhere.

Deciding specification

The registered ECC RDIMM form factor with 4Rx4 rank structure is the single specification that determines compatibility with the target server; only modules with this exact configuration will function correctly in the qualified slots.

Highlights

  • 256 GB total capacity from two 128 GB modules
  • DDR5 4800 speed for high-throughput server workloads
  • ECC registered design protects data integrity under load
  • 1 V operation reduces power draw per module
  • Validated for ASUS RS700A-E12-RS12U 1U dual-processor servers

Specifications

BrandNEMIX RAM
SeriesASUS Server Motherboard Compatible Series Memory
ModelASUS DDR5 4800MHZ ECC RDIMM Registered Server Memory
Part NumberMR38400-744K2
Capacity256GB (2 x 128GB)
SpeedDDR5 4800 (PC5 38400)
ECCYes
Buffered/RegisteredRegistered
ChipsetMajor OEM Samsung, Micron, Hynix
Voltage1.10V
Compatible SystemASUS
CAS LatencyCL40
Heat SpreaderNo
Type288-Pin DDR5 RDIMM
Rank4Rx4
FeaturesDDR5 ECC Registered RDIMM Server Motherboard Compatible
Package Content256GB (2X128GB) DDR5 4800MHZ PC5-38400 4Rx4 1.1V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will these 288-pin DDR5 RDIMMs work in my ASUS RS700A-E12-RS12U alongside existing 4800 MHz memory?

Yes, the kit is built for that server model and runs at DDR5 4800 (PC5-38400) with CL40 latency, so it will match the speed and timing of other 4800 MHz modules already installed.

How can I verify the 256 GB kit is running correctly after installation?

Enter the BIOS or use a tool like IPMI to confirm the system sees 256 GB total, reports DDR5 4800 MT/s, shows ECC enabled and displays CL40 timings at 1.10 V.

What exactly ships in the box and do I need anything else to install it?

The package contains two 128 GB DDR5 4800 ECC registered RDIMMs (2 x 128 GB). No extra brackets, cables or cooling parts are required; the modules seat directly into the server's 288-pin slots.

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