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Six green DDR5 RDIMM modules with gold contacts and black chips, no heat spreaders

NEMIX RAM

NEMIX RAM RS520A-E12-RS24U 384GB (6x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-GR2J-JJ6E4 MPN RS520A-E12-RS24U

384GB DDR5 4800 ECC registered server kit, six 64GB 2Rx4 modules at 1.1V CL40 for ASUS RS520A-E12-RS24U

  • Total capacity384 GB (6 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 384 GB total capacity from six 64 GB modules
  • DDR5 4800 speed with CL40 latency for server workloads
  • ECC registered RDIMM design protects data integrity
  • 1 V operation reduces power draw in dense configurations
  • Validated for ASUS RS520A-E12-RS24U 2U server platform

Capacity and Fit

This kit delivers 384 GB across six 64 GB DDR5 RDIMM modules built for the ASUS RS520A-E12-RS24U server. It targets administrators who need maximum registered ECC capacity in a single-socket 2U platform.

DDR5 4800 Registered Limits

The modules run at 4800 MT/s with CL40 latency at 1.10 V on the PC5-38400 standard. Registered buffering and 2Rx4 organisation allow the full six-module population, but the bus speed and timing are fixed by the platform memory controller.

Upgrade Path

The kit replaces lower-capacity DDR5 RDIMM sets or fills empty slots to reach the board's 384 GB ceiling. The jump is worthwhile when workloads exceed the current memory footprint and the server's memory-controller configuration supports the full six-channel load.

How it compares

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

Price $10,981.99
Pricier than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (6 × 64 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $28.60 per GB
Pricier than about 81% 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 numberMR38400-924K6
Total capacity384 GB (6 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items384 GB (6 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Should I choose the 384GB kit with six 64GB modules or a different capacity for my ASUS RS520A-E12-RS24U?

This kit provides 384GB total across six 64GB DDR5 4800 RDIMMs, matching the validated configuration for the ASUS RS520A-E12-RS24U server.

What does the DDR5 4800 speed deliver once installed in the RS520A-E12-RS24U?

The modules run at 4800 MT/s with CL40 latency at 1.1V, giving the maximum supported memory bandwidth for this single-socket 2U platform.

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

The registered 288-pin DDR5 RDIMM form factor caps the memory bus at 4800 MT/s and requires ECC registered operation, which the RS520A-E12-RS24U chipset enforces.

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