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Green rectangular circuit board with gold contacts and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 64GB DDR5 6400 CL52 4Rx4 1.1V 288-pin ECC RDIMM memory upgrade

SKU CH-JX1X-GYSTH

64 GB DDR5 6400 CL52 4Rx4 ECC registered RDIMM at 1.1 V for Supermicro X14SDW-64C-SP9F

  • Total capacity64 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB

Show 4 more
  • Exact DDR5-6400 CL52 1.1 V spec recognised at full 64 GB capacity
  • Registered 4Rx4 ECC RDIMM offloads controller for stable full-population operation
  • ECC corrects single-bit errors preventing silent data corruption and unplanned reboots
  • 288-pin RDIMM form factor verified for Supermicro X14SDW-64C-SP9F motherboard
  • Lifetime replacement warranty with free US-based technical support included

64GB DDR5 6400 ECC RDIMM for Supermicro

This 64GB DDR5-6400 registered ECC module is built for the Supermicro X14SDW-64C-SP9F motherboard. It matches the board's required 288-pin RDIMM form factor, 4Rx4 rank structure, 1.1V operating voltage and CL52 latency. The exact specification ensures the memory controller recognises the full capacity and runs at the rated PC5-51200 speed without manual tuning.

Sustained-load behaviour

Registered buffering reduces the electrical load on the memory controller, allowing every slot to remain fully populated at the rated 6400 MT/s during continuous workloads. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption and unplanned reboots that would otherwise interrupt production services running around the clock.

DDR5 RDIMM practical limits for this platform

The DDR5 RDIMM standard used here supports the 64GB density, 6400 MT/s transfer rate and 1.1V voltage specified for this module. Population rules, maximum total capacity and supported rank configurations are defined by the Supermicro X14SDW-64C-SP9F motherboard manual; exceeding those limits will prevent the system from posting or force down-clocking.

How it compares

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

Price $2,068.99
Pricier than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $32.33 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-944K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How much power does this 64GB DDR5 6400 CL52 module draw at its rated 1.1V?

The module operates at 1.1V with CL52 timings, a combination that keeps power draw low for continuous server workloads.

What motherboard slot and memory type are required to install this 288-pin RDIMM?

The 288-pin DDR5 RDIMM form factor requires a DDR5 registered DIMM slot on a compatible Supermicro motherboard such as the X14SDW-64C-SP9F.

Can this 4Rx4 registered ECC DDR5 module run alongside other registered ECC DDR5 DIMMs in the same server?

Yes, its registered architecture and ECC function allow it to operate in fully populated DDR5 channels with other registered ECC modules following the motherboard's population rules.

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