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Four green DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (4×32GB) DDR5-6400 CL52 1.1V ECC Registered RDIMM Supermicro H14SSF

SKU CH-G6S4-R96AN

128 GB DDR5-6400 registered ECC kit in four 32 GB modules at 1.1 V CL52, matched to Supermicro H14SSF memory rules

  • Total capacity128 GB (4 × 32 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 128 GB total capacity across four 32 GB modules
  • DDR5-6400 speed with CL52 latency at 1.1 V
  • ECC and registered design prevents data errors
  • Exact fit for Supermicro H14SSF motherboard
  • Major OEM Samsung Micron Hynix chips ensure quality

Exact-match DDR5 RDIMM kit

This 128GB kit contains four 32GB DDR5-6400 Registered ECC modules built to the 288-pin RDIMM form factor. It targets administrators upgrading a Supermicro H14SSF server who need the precise rank, voltage and timing the board expects for full-capacity recognition.

Sustained-load behaviour

Registered buffering offloads the memory controller so all four slots run fully populated at the rated 6400 MT/s without down-clocking. ECC corrects single-bit errors on the fly, preventing silent data corruption during continuous enterprise workloads.

Upgrade scope and limits

The kit replaces lower-capacity or slower DDR5 RDIMMs in the H14SSF when the platform supports 2Rx8 organisation at 1.1V CL52. It is not suited for systems that require UDIMM, SODIMM, non-ECC or a different voltage and latency profile.

How it compares

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

Price $5,024.99
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 $39.26 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

Questions about this item

How much heat and power does the 1.1V DDR5-6400 kit draw when the server runs continuously?

Each module operates at 1.1V with no heat spreader, so airflow across the 288-pin RDIMMs is the primary cooling path; registered buffering reduces electrical load on the memory controller during sustained full-population use.

What motherboard slot type and population rules must my Supermicro H14SSF already have to accept this 4×32GB kit?

The board needs four 288-pin DDR5 RDIMM slots and must support 2Rx8 registered ECC modules at 6400 MT/s; consult the manual for the approved population order before installing all four DIMMs.

Can I mix this 128GB CL52 registered ECC kit with any existing RDIMMs of a different speed or rank in the same H14SSF system?

Mixing ranks, speeds or CAS latencies is not recommended; the memory controller will down-clock all channels to the slowest common timing, and population rules may prevent full-capacity operation.

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