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Four green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 128GB (4×32GB) DDR5-6400 CL52 1.1V 2Rx8 ECC RDIMM for Supermicro H14SSL-N

SKU CH-4G3M-1502P

128 GB DDR5-6400 registered ECC kit with four 32 GB modules at CL52 and 1.1 V, validated for Supermicro H14SSL-N

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB 4X32GB

Show 24 more
  • 128 GB total capacity in a matched 4 × 32 GB kit
  • DDR5-6400 speed with CL52 latency runs at rated frequency
  • Registered ECC architecture corrects single-bit errors for data integrity
  • 1 V operation meets the platform's specified voltage
  • 288-pin RDIMM form factor fits Supermicro H14SSL-N memory slots

Exact DDR5-6400 RDIMM kit

This NEMIX RAM kit delivers 128GB of DDR5 server memory as four 32GB Registered ECC modules. Each 288-pin RDIMM operates at 6400MT/s with CL52 latency and a low 1.1V supply. The 2Rx8 rank structure matches the density and timing profile that registered server platforms expect for full-capacity operation.

For Supermicro H14SSL-N builds

The kit is validated for the Supermicro H14SSL-N motherboard, so installers avoid the trial-and-error of generic module qualification. Registered buffering and on-die ECC protect data integrity in always-on workloads. Builders using consumer boards, laptops, or any system that requires unbuffered UDIMMs or SODIMMs cannot use these modules.

Registered ECC DDR5 at 1.1V

The single specification that decides fitment is the Registered ECC DDR5 RDIMM interface running at 1.1V. Only motherboards wired for 288-pin DDR5 RDIMMs with registered clock drivers and ECC support will recognise the kit at its rated 6400 speed and 128GB total capacity.

How it compares

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

Price $4,984.99
Pricier than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (4 × 32 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $38.95 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 numberMR51200-328K4
Total capacity128 GB (4 × 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 items128 GB 4 × 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

Will the 288-pin RDIMM modules fit the Supermicro H14SSL-N motherboard slots?

Yes, the kit uses the exact 288-pin Registered DDR5 form factor the H14SSL-N requires; it is not a UDIMM or SODIMM and matches the board's physical slot keying.

What population order should I follow when installing the four 32 GB sticks?

Consult the H14SSL-N manual for the approved DIMM population sequence; the board's memory-controller rules dictate which slots must be filled first for full 128 GB recognition.

Do these modules have heat spreaders that could block adjacent CPU coolers?

No, the DIMMs are supplied without heat spreaders, so they present a low profile that clears most server heatsinks and airflow paths.

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