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Two green 288-pin DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM RS720A-E12-RS24U 256GB (2x128GB) DDR5 4800MHz ECC RDIMM memory upgrade

SKU CH-DP8V-824Y7 MPN RS720A-E12-RS24U

A 256 GB DDR5 registered ECC kit with two 128 GB modules running at 4800 MHz CL40 and 1.1 V for the ASUS RS720A-E12-RS24U server

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256 GB capacity supports heavy workloads using two 128 GB modules
  • DDR5 4800 MHz speed delivers high bandwidth for data-intensive tasks
  • ECC registered design detects and corrects errors for server reliability
  • 1 V operation reduces power draw in dense configurations
  • Validated for ASUS RS720A-E12-RS24U 2U dual-processor server

Compatible server memory kit

This kit supplies 256 GB of DDR5 ECC registered memory in two 128 GB modules for the ASUS RS720A-E12-RS24U dual-processor server. It runs at 4800 MT/s with CL40 latency at 1.1 V. The 288-pin RDIMM form factor matches the platform's memory slots.

Suited for capacity-bound workloads.

IT teams expanding memory for virtualization, databases or large datasets in the named 2U server will benefit from the 4Rx4 registered design. Builders using consumer motherboards, workstations without registered DIMM support or systems requiring unbuffered ECC should select different memory.

Registered ECC RDIMM requirement

The modules are DDR5 4800 registered ECC RDIMMs with a 4Rx4 organisation. Only platforms that explicitly support registered ECC DDR5 RDIMMs can use this kit; unbuffered or non-ECC boards will not accept it.

How it compares

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

Price $7,818.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.54 per GB
Pricier than about 87% 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 numberMR38400-744K2
Total capacity256 GB (2 × 128 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 rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items256 GB (2 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 256GB kit with two 128GB modules or a different capacity for my ASUS RS720A-E12-RS24U server?

This kit provides 256GB total using two 128GB DDR5 4800MHz ECC RDIMM modules, matching the server model RS720A-E12-RS24U specification.

What does the 4800MHz speed mean for actual performance inside the RS720A-E12-RS24U?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency and 1.1V, delivering the rated throughput the server's memory controller supports.

Does the 288-pin DDR5 RDIMM interface limit how much bandwidth the system can use?

The 288-pin DDR5 RDIMM form factor carries the 4800MHz signal; bandwidth is capped by the CPU's memory controller, not the module connector.

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