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Two green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM DDR5 64GB 2x32GB 6400MHz CL52 2Rx4 ECC Registered RDIMM Supermicro X14SRA-F memory upgrade

SKU CH-3W32-F72ZE

A 64 GB DDR5 kit of two 32 GB registered ECC RDIMMs at 6400 MHz CL52, validated for the Supermicro X14SRA-F motherboard

  • 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 4 more
  • 64GB total capacity from two matched 32GB modules for full-channel bandwidth
  • DDR5-6400 speed with CL52 latency runs at the board's rated frequency
  • 2Rx4 Registered ECC architecture offloads the controller and corrects single-bit errors
  • 1V operating voltage matches the server platform's memory-controller specification
  • 288-pin RDIMM form factor fits the Supermicro X14SRA-F memory slots exactly

System-specific DDR5 RDIMM kit

This 64 GB kit contains two 32 GB DDR5 6400 MHz registered ECC RDIMMs built for the Supermicro X14SRA-F motherboard. The modules run at 1.1 V with CL52 latency and use a 2Rx4 organisation across 288 pins.

Registered ECC with 2Rx4 rank

The single specification that decides fitment is the registered ECC RDIMM format with 2Rx4 ranking at DDR5 6400 speed. Only motherboards that explicitly support this exact rank, voltage and timing will recognise the full capacity and operate at the rated frequency.

Suited for Supermicro X14SRA-F upgrades

This kit suits administrators upgrading a Supermicro X14SRA-F that requires registered ECC DDR5 RDIMMs populated per the board's memory rules. Builders needing unbuffered UDIMMs, SODIMMs, non-ECC modules or a different rank configuration should look at other memory types.

How it compares

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

Price $2,472.99
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 $38.64 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 numberMR51200-324K2
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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 2 × 32 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What does the DDR5-6400 speed rating mean once the modules are installed in a Supermicro X14SRA-F?

The kit runs at 6400 MT/s with CL52 latency at 1.1 V, delivering the exact data rate and timing the X14SRA-F memory controller expects for full-capacity operation.

How does the PC5-51200 designation and registered ECC design affect usable bandwidth and error handling?

PC5-51200 matches the DDR5-6400 transfer rate; the registered buffer reduces electrical load on the controller so all slots can run at that speed, while ECC corrects single-bit errors on the fly.

What physical requirements must the chassis and motherboard meet to accept this 288-pin RDIMM kit?

The motherboard needs DDR5 RDIMM slots wired for 288-pin registered modules; the kit contains two 32 GB sticks with no heat spreader, so standard RDIMM clearance applies.

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