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Eight green 288-pin DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM RS720A-E12-RS12 1TB (8x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-S7TV-FN0PX MPN RS720A-E12-RS12

Eight-module kit delivers 1 TB of DDR5 4800 CL40 ECC registered memory for compatible ASUS dual-processor servers

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 1TB capacity with eight 128GB modules
  • DDR5 4800 speed rated at PC5-38400
  • ECC registered design for data integrity
  • 1V operating voltage for efficiency
  • Validated for ASUS RS720A-E12-RS12 server

Targeted 1 TB DDR5 kit

This 1 TB kit contains eight 128 GB DDR5 4800 ECC RDIMM modules built for the ASUS RS720A-E12-RS12 dual-processor server. It delivers registered error-correcting memory for workloads that require data integrity and maximum capacity per channel.

DDR5 4800 bandwidth ceiling

The DDR5 4800 interface caps peak throughput at PC5-38400, so sustained bandwidth cannot exceed this limit regardless of processor support. CL40 latency and 1.10 V operation are fixed by the JEDEC standard for this speed grade.

4Rx4 rank density decides fit

Each module uses a 4Rx4 organisation that occupies four logical ranks per DIMM slot, and the server’s memory controller must support this density to recognise the full 1 TB. Systems limited to lower rank counts will not post with this configuration.

How it compares

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

Price $31,802.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $31.80 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 numberMR38400-744K8
Total capacity1 TB (8 × 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 items1 TB (8 × 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 pick the 1TB kit with eight 128GB modules or a smaller capacity for my ASUS RS720A-E12-RS12 server?

The 1TB kit fills eight slots with 128GB DDR5 4800 CL40 registered ECC modules; choose it when the workload needs maximum capacity across all channels.

What does the 4800 speed rating deliver once the memory is installed in the RS720A-E12-RS12?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.1V, providing the rated throughput and error correction the server platform expects.

How does the 288-pin DDR5 RDIMM interface limit performance in this server?

The 288-pin registered DDR5 form factor caps the kit to the platform's supported 4800 MT/s data rate and 4Rx4 organisation, matching the motherboard's memory controller specification.

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