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Four green DDR5 RDIMM sticks, black chips, no heat spreader

NEMIX RAM

NEMIX RAM RS720-E11-RS12U 512GB (4x128GB) DDR5 4800 memory upgrade

SKU CH-4916-SY7ET MPN RS720-E11-RS12U

512 GB DDR5 4800 ECC registered server kit with four 128 GB modules at 1.1 V CL40 for ASUS RS720-E11-RS12U

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity from four 128 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design detects and corrects data errors
  • 1 V operating voltage reduces server power draw
  • Validated for ASUS RS720-E11-RS12U 2U dual-socket servers

Capacity and form factor

This 512GB kit contains four 128GB DDR5 4800 registered DIMMs built for the ASUS RS720-E11-RS12U 2U dual-socket server. Each module runs at 1.1V with CL40 latency and uses a 4Rx4 organisation with on-board ECC.

Compatibility fit

The modules are validated only for the named ASUS 2U dual-socket platform; they will not work in consumer desktops, workstations that require unbuffered memory, or single-socket servers that do not support registered DIMMs. Buyers needing standard UDIMM or SO-DIMM formats should look elsewhere.

Registered ECC DDR5

Registered ECC operation is the single specification that decides whether this kit fits the target system; the motherboard must accept 288-pin RDIMMs with 4Rx4 ranking and DDR5 4800 signalling.

How it compares

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

Price $15,378.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $30.04 per GB
Pricier than about 86% 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 numberMR38400-744K4
Total capacity512 GB (4 × 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 items512 GB (4 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the kit include only the four 128 GB modules or are cables or brackets also supplied?

The package contains the four 128 GB DDR5 4800 RDIMM modules and nothing else; no cables, brackets or additional hardware are included.

Should I choose this 512 GB quad-rank kit or a lower-capacity alternative for my RS720-E11-RS12U?

Select this 512 GB (4 x 128 GB) 4Rx4 kit when the workload needs maximum registered ECC capacity; choose a smaller kit only if the total memory requirement is lower.

What does the 4800 MT/s rating mean once the modules are installed in the ASUS RS720-E11-RS12U?

The memory will run at up to 4800 MT/s with CL40 latency at 1.10 V, delivering the rated DDR5 4800 speed supported by the server platform.

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