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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM CSE-GS7A-000NBP3 64GB (4x16GB) DDR5 4800 CL40 ECC RDIMM memory upgrade

SKU CH-9TJT-J24QG MPN CSE-GS7A-000NBP3

64GB kit of four 16GB DDR5 4800 CL40 ECC registered DIMMs for Supermicro SuperWorkstation SYS-751A-I

  • Total capacity64 GB (4 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB total capacity across four 16 GB modules
  • DDR5 4800 speed rated at PC5-38400 for high throughput
  • ECC registered RDIMM design protects data integrity in servers
  • Low 1.10 V operation reduces power draw per module
  • Validated for Supermicro SuperWorkstation SYS-751A-I and X13DAI-T systems

SuperWorkstation SYS-751A-I memory kit

This 64GB kit contains four 16GB DDR5 4800 CL40 ECC RDIMM modules built for the SuperMicro SuperWorkstation SYS-751A-I. Registered buffering and on-die ECC protect data integrity in multi-threaded server workloads. The 1.10V operating voltage matches the platform specification. IT teams handling virtualisation or database tasks gain validated capacity without guesswork.

Upgrading from lower-capacity RDIMMs

Replacing smaller registered DIMMs with this 4x16GB set raises total memory to 64GB while keeping the same DDR5 4800 speed and CL40 timing. The jump is worth it when workloads exceed the current footprint and cause swapping or VM limits. Systems already running 4800 CL40 registered modules can add this kit without mixing speeds. Buyers needing higher frequency or lower latency must select a different validated part.

Tool-free DIMM installation

Modules seat in the 288-pin DDR5 slots with a vertical press until the ejectors click; no screws or cables are involved. The SuperWorkstation manual shows the required population order for quad-channel operation. Common issues include seating a module off-centre, which prevents the ejector from latching, or populating slots in the wrong sequence, which forces the system to run in reduced-channel mode. Always power down and observe anti-static precautions before starting.

How it compares

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

Price $1,595.99
Pricier than about 65% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (4 × 16 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $24.94 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 numberMR38400-618K4
Total capacity64 GB (4 × 16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB (4 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Will the 288-pin DDR5 RDIMM modules fit the memory slots on my SuperMicro SYS-751A-I workstation?

Yes, the kit is built specifically for the SuperMicro SuperWorkstation SYS-751A-I and the Super X13DAI-T motherboard, so the 288-pin DDR5 RDIMM form factor matches the board's slots exactly.

What is the correct way to populate the four 16 GB modules, and what step do installers often miss?

Install all four modules in the slots designated for the same memory channel, then press down firmly until the ejector clips click; the step often missed is verifying that both clips lock on every module.

When should I plan to replace the ECC registered modules in this 64 GB kit?

Replace them if the system logs uncorrectable ECC errors or if diagnostic software reports persistent failures; otherwise they are rated for continuous operation at the specified voltage and speed.

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