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Four green 288-pin DDR5 RDIMM modules in static bags

NEMIX RAM

NEMIX RAM DDR5 6400 512GB 4x128GB CL52 1.1V 4Rx4 ECC RDIMM Supermicro X14SRA-T memory upgrade

SKU CH-GY8Z-XG4Q5

512 GB DDR5 6400 kit of four 128 GB registered ECC RDIMMs at 1.1 V CL52 for Supermicro X14SRA-T

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

Show 4 more
  • 512 GB total capacity with four 128 GB modules for maximum server density
  • DDR5 6400 speed rated at CL52 latency for high-throughput workloads
  • Registered ECC architecture corrects single-bit errors and buffers signals for full-slot stability
  • 1 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin RDIMM form factor verified for Supermicro X14SRA-T compatibility

Exact-match DDR5 kit for Supermicro X14SRA-T

This 512 GB kit contains four 128 GB DDR5 6400 RDIMMs built to the board's required 4Rx4 registered ECC specification at 1.1 V CL52. It targets administrators expanding memory capacity on a validated Supermicro X14SRA-T platform.

Replaces partial or slower populations

Swapping mixed-capacity or lower-speed modules for this matched quad-rank set lets every slot run at the rated 6400 MT/s without down-clocking. The jump is worth it when your workloads need the full 512 GB address space and registered ECC stability at the board's native data rate.

Verify DIMM population rules first

Consult the motherboard manual for approved slot order, maximum supported capacity per channel, and any BIOS revision required for 4Rx4 modules at this density. Confirm the chassis has 288-pin RDIMM slots and that the memory controller supports the 1.1 V operating voltage before ordering.

How it compares

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

Price $18,856.99
Pricier than about 91% 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 $36.83 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-744K4
Total capacity512 GB (4 × 128 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 items512 GB 4 × 128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Will these 288-pin DDR5 RDIMMs fit the Supermicro X14SRA-T memory slots?

Yes, the 288-pin Registered DDR5 form factor matches the X14SRA-T DIMM slots exactly; the kit is spec-matched to the board's population rules.

What is the correct installation sequence for the four 128 GB modules on the X14SRA-T?

Follow the motherboard manual's approved DIMM population order; the common mistake is filling slots sequentially instead of the prescribed channel sequence.

How do I know if a specific 128 GB module needs replacement later?

ECC corrects single-bit errors on the fly; persistent multi-bit errors or POST memory failures indicate a module that should be swapped under lifetime replacement.

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