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Eight green DDR5 RDIMM modules, bare circuit boards, 288 pins each

NEMIX RAM

NEMIX RAM RS520A-E12-RS24U 512GB (8×64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-3ZMQ-SKA7C MPN RS520A-E12-RS24U

512 GB kit of eight 64 GB DDR5 4800 CL40 ECC registered RDIMMs for ASUS RS520A-E12-RS24U servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 512 GB total capacity from eight 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered RDIMM protects data integrity in servers
  • 1 V operation lowers power draw per module
  • 288-pin 2Rx4 layout fits ASUS RS520A-E12-RS24U 2U server

Server Memory Kit

This NEMIX RAM kit supplies 512 GB of DDR5 capacity across eight 64 GB registered DIMMs. It is built for the ASUS RS520A-E12-RS24U single-socket 2U server and targets IT teams running memory-intensive workloads in that specific platform.

Build Integration

Each module uses the 288-pin DDR5 RDIMM form factor with 2Rx4 organisation and operates at 1.1 V. Registered buffering and on-die ECC reduce electrical load on the memory controller, freeing the CPU to handle larger datasets without instability.

Suitability

This kit suits administrators who need a validated 512 GB upgrade for the named ASUS 2U server and want a single part number for all eight slots. Builders using a different chassis, a dual-socket board, or a platform that requires unbuffered UDIMMs should look at other memory solutions.

How it compares

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

Price $13,673.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $26.71 per GB
Pricier than about 74% 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 numberMR38400-924K8
Total capacity512 GB (8 × 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 items512 GB (8 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 1.10 V DDR5 modules stay stable during 24-hour workloads?

The kit runs at the standard 1.10 V for DDR5, so power draw and heat remain within normal server DIMM limits.

How much heat does the 512 GB kit produce under continuous load?

Eight 64 GB RDIMMs at 4800 MT/s and CL40 generate typical registered-DIMM thermals; no heat spreader is fitted, so chassis airflow handles cooling.

Does the ASUS RS520A-E12-RS24U need a specific BIOS version before installing this memory?

The modules are validated for the RS520A-E12-RS24U; consult the ASUS motherboard manual for any required BIOS update before installation.

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