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Two green circuit boards with black memory chips and gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM MR51200-328K2 64GB 2x32GB DDR5 6400 CL52 ECC RDIMM memory upgrade

SKU CH-YS9E-K5BT5

64 GB DDR5 kit with two 32 GB registered ECC RDIMMs running at 6400 MT/s, CL52 and 1.10 V for Supermicro H13SRA-F and H13SRA-TF motherboards

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 2X32GB

Show 6 more
  • Full 64 GB capacity from two matched 32 GB modules
  • DDR5 6400 speed with CL52 latency for rated throughput
  • Registered ECC design corrects single-bit errors automatically
  • 1 V operation at 2Rx8 rank for stable full-slot population
  • 288-pin RDIMM form factor verified for Supermicro H13SRA-F and H13SRA-TF

System-specific DDR5 ECC RDIMM kit

This 64 GB kit contains two 32 GB DDR5-6400 registered DIMMs built for Supermicro H13SRA-F and H13SRA-TF motherboards. Each module runs at 1.1 V with CL52 latency and a 2Rx8 organisation. The registered ECC design lets the memory controller drive every slot at full rated speed while correcting single-bit errors on the fly.

Verify motherboard population rules first

Check your system manual for the approved DIMM installation order and maximum supported capacity per channel before ordering. These 288-pin RDIMMs are not interchangeable with UDIMM or SODIMM form factors and require a board wired for registered DDR5 memory. Confirm that your firmware revision recognises the exact rank and voltage configuration supplied.

Sustained enterprise stability under load

Registered buffering reduces electrical load on the memory controller so all populated slots operate reliably at 6400 MT/s during continuous workloads. On-die ECC detects and corrects single-bit errors in real time, preventing silent data corruption that can crash production services. The 1.1 V operating voltage keeps power draw consistent across extended duty cycles.

How it compares

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

Price $2,521.99
Pricier than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $39.41 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 numberMR51200-328K2
Total capacity64 GB (2 × 32 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 2 × 32 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the NEMIX RAM MR51200-328K2 kit include only the two 32GB DDR5 RDIMM modules or are any extra parts supplied?

The package contains exactly the 64GB kit — two 32GB DDR5 6400 CL52 ECC Registered RDIMM modules. No heat spreaders, cables, tools or additional accessories are included.

My Supermicro H13SRA-F board supports several DDR5 speeds; why choose the 6400 CL52 version over a lower-speed kit?

This kit matches the motherboard's maximum validated DDR5-6400 (PC5-51200) specification with CL52 latency and 1.10 V, so the memory controller recognises the full 64 GB capacity at rated speed without down-clocking.

What real-world effect does the CL52 CAS latency have once the modules are installed in a Supermicro H13SRA-TF server?

CL52 is the rated timing at DDR5-6400; the registered ECC design lets every slot run fully populated at that speed while correcting single-bit errors on the fly, preventing silent data corruption under sustained load.

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