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Sixteen green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM RS720QA-E12-RS8U 512GB (16x32GB) DDR5 4800 CL40 1Rx4 ECC RDIMM memory upgrade

SKU CH-R4XA-A71YA MPN RS720QA-E12-RS8U

A 512 GB DDR5 registered ECC kit of sixteen 32 GB modules running at 4800 MT/s with CL40 latency for ASUS RS720QA-E12-RS8U rack servers

  • Total capacity512 GB (16 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity from 16 modules of 32 GB each
  • DDR5 4800 speed rated at PC5-38400 for server workloads
  • ECC registered RDIMM design protects data integrity in critical environments
  • 1Rx4 rank organisation with 1.1 V operation for high-density deployment
  • 288-pin DDR5 form factor built for ASUS RS720QA-E12-RS8U rack servers

512GB DDR5 4800 ECC RDIMM kit

This 512GB kit contains sixteen 32GB DDR5 4800 CL40 ECC RDIMM modules designed for the ASUS RS720QA-E12-RS8U rack server. It targets IT teams expanding memory capacity in high-density 2U4N configurations that require registered error-correcting memory.

Registered DDR5 installation notes

Modules are 288-pin DDR5 RDIMMs operating at 1.1V with a 1Rx4 organisation; they install like standard server DIMMs but must populate the correct slots per the motherboard manual to enable quad-channel operation. Mixing ranks or skipping required slots will prevent the system from posting.

Pre-order compatibility checks

Verify the server is the exact ASUS RS720QA-E12-RS8U model and that the BIOS version supports 512GB total capacity with sixteen 32GB RDIMMs. Confirm the chassis has all sixteen DIMM sockets accessible and that the memory population rules for this platform are met before ordering.

How it compares

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

Price $13,232.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (16 × 32 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $25.85 per GB
Pricier than about 71% 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 numberMR38400-314K16
Total capacity512 GB (16 × 32 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 rank1Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items512 GB (16 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How can I confirm the 512GB kit is running at DDR5 4800 with CL40 after installation?

Check the BIOS or UEFI memory information screen — it should show 4800 MT/s and CAS latency 40 for all 16 modules.

What ships in the box and do I need any extra parts for the ASUS RS720QA-E12-RS8U server?

The kit includes sixteen 32GB 288-pin DDR5 RDIMM modules; no additional components are required for the compatible ASUS 2U4N rack server.

Which capacity version should I choose if I want the full 512GB supported by this part number?

Select the 512GB (16x32GB) configuration — it is the only capacity offered under part number MR38400-314K16.

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