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Sixteen green DDR5 RDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM RS520A-E12-RS12U 2TB (16x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-TY7S-JPMB3 MPN RS520A-E12-RS12U

2TB kit of sixteen 128GB DDR5 4800 CL40 ECC registered DIMMs for the ASUS RS520A-E12-RS12U 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
  • Massive 2 TB capacity from 16 modules of 128 GB each
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC and registered design protects data integrity in servers
  • Low 1.10 V operation reduces power draw per module
  • Validated for ASUS RS520A-E12-RS12U 2U single-socket server

2TB DDR5 ECC RDIMM kit

This NEMIX RAM kit provides 2TB of DDR5 4800 registered ECC memory across sixteen 128GB modules. It is built for the ASUS single-socket 2U server model RS520A-E12-RS12U and targets IT professionals running mission-critical workloads.

Verify 288-pin DDR5 slots and 4Rx4 support

Confirm the motherboard has sixteen 288-pin DDR5 slots and accepts 4Rx4 registered modules at 1.1V. Check the system documentation for maximum capacity per socket and population rules before ordering.

Samsung, Micron or Hynix ICs without heat spreaders

Major OEM chips from Samsung, Micron or Hynix are mounted on bare green PCBs, so airflow across the DIMMs is essential in a 2U chassis. The registered design adds a clock cycle but improves signal integrity at this density.

How it compares

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

Price $58,452.99
Pricier than about 97% 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 $29.23 per GB
Pricier than about 83% 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

Does the kit include all 16 modules or must any be purchased separately?

The kit contains 16 modules of 128 GB each, giving a total of 2 TB. No additional modules are required.

Why choose the 16 x 128 GB version instead of a smaller capacity?

This configuration fills 16 DIMM slots with 128 GB 4Rx4 registered ECC modules, delivering the maximum 2 TB supported by the ASUS RS520A-E12-RS12U server.

What does the 4800 CL40 rating mean for actual server performance?

The modules run at DDR5 4800 MT/s with CAS latency 40 at 1.10 V, providing PC5-38400 bandwidth for registered ECC workloads.

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