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Eight green DDR5 RDIMM modules with black chips and gold contacts

NEMIX RAM

NEMIX RAM RS720A-E12-RS24U 1TB (8x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-9S8V-0FWD4 MPN RS720A-E12-RS24U

Eight 128 GB DDR5 4800 CL40 ECC registered DIMMs deliver 1 TB for the ASUS RS720A-E12-RS24U server

  • 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 total capacity for high-density server workloads
  • 8x128GB DDR5 4800 modules deliver 38400 MT/s bandwidth
  • ECC registered design protects data integrity in critical applications
  • 1V operation reduces power draw per module
  • Validated for ASUS RS720A-E12-RS24U 2U dual-processor servers

1TB DDR5 ECC RDIMM kit

This NEMIX RAM kit supplies 1TB of DDR5 4800 memory across eight 128GB registered DIMMs. It is built for the ASUS RS720A-E12-RS24U 2U dual-processor server and carries ECC with a CL40 latency at 1.10V.

Who should use this kit

Administrators expanding an ASUS RS720A-E12-RS24U to its full memory capacity will find the correct rank, voltage and form factor in this package. Buyers who need non-ECC modules, a different pin count, or a lower total capacity should look elsewhere.

Registered 4Rx4 DDR5 specification

Each module is a 288-pin DDR5 RDIMM organised as 4Rx4 and rated PC5-38400 at 4800MT/s with CL40 timing. That registered 4Rx4 organisation is the single spec that decides whether the server will accept the kit.

How it compares

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

Price $31,465.99
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 $31.47 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

How do I install the eight 128 GB DDR5 4800 RDIMM modules in the ASUS RS720A-E12-RS24U server, and what step is often missed?

Power down, open the chassis, align each 288-pin module with the correct DIMM slots per the ASUS population guide, press firmly until both clips lock, then verify all 1 TB appears in BIOS before closing the case.

What maintenance or replacement will this 1 TB DDR5 4800 ECC RDIMM kit need over its service life?

The modules have no moving parts or heat spreaders; run periodic memory diagnostics and keep firmware current, replacing any stick that logs uncorrectable ECC errors.

What limit appears first when this 4Rx4 DDR5 4800 CL40 registered memory runs sustained workloads?

The CL40 latency at 4800 MT/s sets the bandwidth ceiling; sustained throughput cannot exceed the rated PC5-38400 speed regardless of load duration.

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