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Four green DDR5 RDIMM modules without heat spreaders, 288-pin, 512GB total

NEMIX RAM

NEMIX RAM 512GB (4x128GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-XBVP-E466T

512 GB DDR5 ECC registered server memory kit with four 128 GB modules at 4800 MT/s CL40 for Supermicro X13SEW motherboards

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Massive 512GB capacity with four 128GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • ECC registered design protects data integrity in servers
  • Low 1.10V voltage reduces power draw per module
  • Validated for Supermicro X13SEW-TF and X13SEW-F motherboards

System-specific DDR5 ECC RDIMM kit

This NEMIX RAM kit provides 512GB of DDR5 4800 registered ECC memory across four 128GB modules. It is built for Supermicro X13SEW-TF and X13SEW-F motherboards in server and workstation deployments. The registered design and error-correcting code support data integrity under sustained enterprise workloads. Modules operate at the standard 1.10V DDR5 voltage.

Verify motherboard model and slot population rules

Confirm your system is a Supermicro X13SEW-TF or X13SEW-F before ordering, as this kit is validated for those specific boards. Check the manual for the approved 4Rx4 population sequence across the 288-pin DDR5 slots. Ensure the BIOS is updated to the revision that supports 128GB RDIMM density. The kit contains four modules and fills the corresponding channels.

Thermals noise and power draw in normal use

Bare modules without heat spreaders rely on chassis airflow for cooling; server enclosures typically provide sufficient directed flow. Power draw per module is low at 1.10V, keeping total memory subsystem consumption modest under load. Registered buffering adds negligible latency while stabilising the signal for large-capacity configurations. No active cooling components are present to generate noise.

How it compares

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

Price $14,888.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $29.08 per GB
Pricier than about 82% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSuperMicro Server/Workstation Compatible Series Memory
Model nameSuperMicro DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-744K4
Total capacity512 GB (4 × 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 systemsSupermicro
In the box
Included items512 GB (4 × 128 GB) DDR5 4800 MHz PC5-38400 4Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 512GB kit include all four 128GB modules or must any be purchased separately?

The kit ships with four 128GB modules for a total of 512GB; no additional modules are required.

Should I choose the CL40 4800MHz version or a different speed grade for the SuperMicro X13SEW-TF?

This kit runs at DDR5 4800 with CL40 latency, matching the motherboard's native memory specification.

What does the 4800MHz rating mean once the memory is installed in the server?

The modules operate at 4800MT/s with 1.10V, delivering PC5-38400 bandwidth and ECC error correction for the registered DIMM slots.

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