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Sixteen green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS720A-E12-RS12 2TB (16x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-AWE1-65BDE MPN RS720A-E12-RS12

16-module kit provides 2 TB of DDR5 ECC registered server memory at 4800 MT/s CL40

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 2TB total capacity from 16 modules of 128GB each
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM with CL40 latency ensures data integrity
  • 4Rx4 rank organisation on 288-pin DDR5 form factor
  • Low 1.1V operating voltage reduces power draw

2TB DDR5 ECC RDIMM kit

This 2 TB kit contains sixteen 128 GB DDR5 4800 registered DIMMs built for the ASUS RS720A-E12-RS12 dual-processor server. ECC and registered buffering protect data integrity in mission-critical workloads. The modules run at 1.1 V and carry a CL40 latency rating.

DDR5 4800 registered limits

DDR5 4800 sets the peak transfer rate at PC5-38400, so bandwidth scales with the number of populated channels on the motherboard. Registered signalling adds a clock cycle for address and command buffering, which stabilises large populations but caps maximum frequency. Four-rank 4Rx4 organisation increases electrical load per slot, restricting maximum DIMM count per channel on many platforms.

2 TB capacity headroom

Sixteen 128 GB modules fill every slot on a typical dual-socket board, delivering 2 TB of addressable memory for virtualisation, in-memory databases or large-scale simulation. Workloads that exceed 2 TB or require higher clock speeds will need a platform that supports faster DDR5 grades or greater DIMM density per channel.

How it compares

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

Price $63,133.99
Pricier than about 98% of the 21,161 comparable items (median $397.99).
Total capacity 2 TB (16 × 128 GB)
Higher than about 99% of the 20,941 comparable items (median 32 GB).
Price per GB $31.57 per GB
Pricier than about 90% 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 numberMR38400-744K16
Total capacity2 TB (16 × 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 items2 TB (16 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I choose the 16-module kit or a smaller capacity for my ASUS RS720A-E12-RS12 server?

The 16-module kit fills all DIMM slots for maximum 2TB capacity; select a smaller kit only if your workload does not require the full memory ceiling.

What does the DDR5 4800 speed mean once the modules are installed in the server?

The memory runs at 4800 MT/s with CL40 latency, delivering the rated PC5-38400 bandwidth for the ASUS dual-processor platform.

Does the 288-pin DDR5 RDIMM interface limit the usable speed or capacity in this server?

The 288-pin registered DDR5 form factor is the native interface for the RS720A-E12-RS12 and imposes no additional speed or capacity limits beyond the 4800 MT/s rating.

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