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Green 288-pin DDR5 RDIMM module, no heat spreader

NEMIX RAM

NEMIX RAM 32GB DDR5 4800 CL40 1Rx4 ECC RDIMM RS520A-E12-RS12U memory upgrade

SKU CH-N4CH-F5JVA MPN RS520A-E12-RS12U

32 GB DDR5 4800 ECC registered RDIMM for ASUS RS520A-E12-RS12U servers

  • Total capacity32 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 32 GB capacity expands server memory for heavy workloads
  • DDR5 4800 speed delivers high data throughput
  • ECC registered design protects data integrity in critical tasks
  • 10 V operation reduces power draw per module
  • Validated for ASUS RS520A-E12-RS12U 2U server compatibility

System-specific server memory upgrade

This 32GB DDR5 4800 CL40 ECC RDIMM is built for the ASUS RS520A-E12-RS12U single-socket 2U server. It delivers 32GB of registered, error-correcting memory at 1.10V through a 288-pin interface. The single-rank 1Rx4 module uses major OEM DRAM chips and is validated for that specific platform.

Suited for administrators expanding

IT teams adding capacity to this exact ASUS server model will find guaranteed compatibility and ECC data-integrity protection. Builders working with consumer motherboards, non-ECC workstations, or any server outside the stated model should look elsewhere because the registered DDR5 pin-out and firmware are tailored to the target system.

Registered DDR5 ECC RDIMM at 4800 MT/s

The module operates at PC5-38400 speed with CL40 latency and 1.10V voltage. Registered buffering and on-die ECC correct single-bit errors in flight, a requirement for the RS520A-E12-RS12U memory controller. This specification alone determines whether the part will post and run stably in the intended chassis.

How it compares

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

Price $896.99
Pricier than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $28.03 per GB
Pricier than about 79% 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 numberMR38400-314K1
Total capacity32 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 items32 GB (1 × 32 GB) DDR5 4800 MHz PC5-38400 1Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I install this 288-pin DDR5 RDIMM in the ASUS RS520A-E12-RS12U server, and what step is often missed?

Power down, open the chassis, align the notch on the 288-pin module with the slot key, press firmly until the retention clips lock, then enable ECC in the BIOS — the step most often missed is the BIOS setting.

What maintenance or replacement will this 32 GB 1Rx4 registered ECC module need over its service life?

No scheduled maintenance is required; the module either runs indefinitely or is replaced only if a correctable error count exceeds the platform threshold or a hard failure occurs.

What thermal or electrical limit appears first when this 1.10 V CL40 DDR5 4800 RDIMM runs sustained workloads?

The JEDEC-defined 1.10 V operating voltage and CL40 latency are the first electrical limits encountered; the module has no heat spreader, so case airflow must keep the DRAM within its rated temperature envelope.

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