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Sixteen bare green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS520A-E12-RS24U 2TB (16x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-1236-Y2VKV MPN RS520A-E12-RS24U

16-module 2 TB DDR5-4800 CL40 ECC registered RDIMM kit validated for the ASUS RS520A-E12-RS24U server

  • Total capacity2 TB (16 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 2 TB capacity from sixteen 128 GB modules
  • DDR5 4800 MT/s speed for high throughput
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for ASUS RS520A-E12-RS24U server

2TB DDR5 4800 ECC RDIMM kit

This 2TB memory kit contains sixteen 128GB DDR5 4800 registered DIMMs with ECC and a CL40 latency. It operates at 1.1V and uses a 288-pin 4Rx4 layout built with major OEM DRAM chips. The kit is validated for the ASUS RS520A-E12-RS24U single-socket 2U server.

Compatibility and use cases

The kit suits administrators who need the full 2TB capacity supported by the named ASUS 2U server and want factory-matched modules with registered ECC reliability. It is not for desktop PCs, workstations that require unbuffered memory, or any system that cannot accept 4Rx4 registered DDR5 DIMMs.

4Rx4 registered DDR5 organisation

Each module uses a 4Rx4 organisation, which determines how the memory controller addresses the 128GB density. Verify that the ASUS RS520A-E12-RS24U memory controller supports 4Rx4 registered DIMMs at the full 16-module population before purchase.

How it compares

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

Price $60,115.99
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 $30.06 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 numberMR38400-744K16
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

Will the 16x128GB DDR5 4800 CL40 RDIMM kit run in an ASUS RS520A-E12-RS24U that already has older DDR5 modules installed?

The kit is validated for the ASUS RS520A-E12-RS24U server. Mixing with other DDR5 modules is not validated; the server should be populated with this matched 16-module kit for guaranteed stability.

How can I confirm the 2TB kit is operating at 4800 MT/s with ECC active after installation?

Enter the system BIOS or UEFI and verify the memory speed shows 4800 MT/s, the total capacity reads 2TB across 16 slots, and ECC is reported as enabled for each RDIMM.

Does the package include anything besides the sixteen 128GB 288-pin DDR5 RDIMM modules?

The package contains only the sixteen 128GB DDR5 4800 CL40 1.1V ECC RDIMM modules. No heat spreaders, cables, tools or additional accessories are included.

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