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Two green 288-pin DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB DDR5-6400 ECC RDIMM 2x128GB CL52 1.1V Supermicro X14SRA-F memory upgrade

SKU CH-C6ZH-ZFM8N

256 GB DDR5-6400 ECC registered RDIMM kit (2×128 GB, CL52, 1.1 V, 4Rx4) validated for Supermicro X14SRA-F motherboards

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

Show 4 more
  • 256 GB total capacity from two 128 GB modules for maximum density
  • DDR5-6400 speed rated at PC5-51200 for high bandwidth
  • CL52 latency at 1.1 V for efficient operation
  • ECC registered 4Rx4 design prevents data corruption under load
  • Validated for Supermicro X14SRA-F motherboard with 288-pin RDIMM form factor

Exact-match DDR5-6400 ECC RDIMM kit

This NEMIX RAM kit delivers 256 GB as two 128 GB DDR5-6400 registered ECC modules. Each stick is a 288-pin RDIMM with 4Rx4 organisation, CL52 latency and 1.1 V operation. The modules are validated for the Supermicro X14SRA-F motherboard and use major OEM Samsung, Micron or Hynix chips.

Verify motherboard population rules

Confirm that your X14SRA-F firmware revision and CPU configuration support fully populated 4Rx4 registered DIMMs at 6400 MT/s. Consult the board manual for approved slot order, maximum capacity per channel and any BIOS updates required before installation.

Suits Supermicro X14SRA-F capacity upgrades

Ideal for administrators expanding a verified X14SRA-F platform to its maximum registered ECC configuration. Not suitable for systems that require unbuffered UDIMMs, SODIMM form factors, lower-rank modules or non-ECC memory.

How it compares

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

Price $8,787.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $34.33 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 numberMR51200-744K2
Total capacity256 GB (2 × 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 items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Does the kit include anything besides the two 128 GB DDR5 RDIMMs, or do I need to buy brackets or cables separately?

The package contains only the two 128 GB DDR5-6400 ECC registered RDIMMs. No brackets, cables or additional accessories are included or required.

My Supermicro X14SRA-F manual lists several DDR5 speed grades. Why choose the CL52 6400 MT/s version?

This kit matches the exact rank, voltage and timing the X14SRA-F memory controller expects, so the board recognises the full 256 GB capacity and runs at the rated 6400 MT/s without down-clocking.

What does the CL52 figure mean once the modules are installed in the server?

CL52 is the CAS latency in clock cycles at DDR5-6400. The registered buffer and ECC add a small overhead, but the controller is tuned for this timing, delivering stable throughput at the full 6400 MT/s data rate.

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