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Eight green DDR5 RDIMM sticks in anti-static tray

NEMIX RAM

NEMIX RAM 512GB (8x64GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-X53V-XPMVE

Eight-module kit provides 512GB of DDR5 4800 ECC registered memory for SuperMicro SuperServer systems

  • 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 with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 1 V operation reduces server power draw
  • Validated for Supermicro SYS-221HE-FTNR and related systems

Server Memory Kit

This NEMIX RAM kit supplies 512GB of DDR5 ECC registered memory in eight 64GB modules. It is built for Supermicro SuperServer SYS-221HE platforms that require registered DIMMs with error correction. The modules operate at 4800MT/s with CL40 latency and 1.1V power draw.

Compatibility Check

Verify that your motherboard accepts 288-pin DDR5 RDIMMs and supports 2Rx4 organisation at PC5-38400 speed. Confirm the system BIOS recognises 64GB per slot and that the CPU memory controller can address the full 512GB capacity. Ensure the platform expects registered ECC modules rather than unbuffered or load-reduced types.

Build Integration

The eight modules fill all available slots on compatible Supermicro IOT SuperServer boards, leaving no room for additional memory. Registered buffering reduces electrical load on the memory controller, aiding stability in dense configurations. ECC protection corrects single-bit errors to maintain data integrity under sustained server workloads.

How it compares

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

Price $12,553.99
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 $24.52 per GB
Pricier than about 69% 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 numberMR38400-924K8
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 systemsSupermicro
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

Does the 512GB kit include all eight 64GB modules or do I need to buy anything else?

The kit ships with eight 64GB DDR5 4800 CL40 ECC RDIMM modules for a total of 512GB; no extra parts are required.

How do I know this 2Rx4 1.1V CL40 kit is the right version for my Supermicro SYS-221HE-FTNR server?

The part number MR38400-924K8 matches the Supermicro DDR5 4800 ECC RDIMM specification for the SYS-221HE-FTNR, SYS-221HE-FTNRD and SYS-221HE-TNR platforms.

What does the 4800 MT/s PC5-38400 rating deliver in a real workload on this registered ECC memory?

At 4800 MT/s with CL40 latency the modules provide the standard DDR5 4800 bandwidth and error-corrected throughput the Supermicro server platform expects for mission-critical workloads.

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