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Green printed circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 64GB DDR5 6400 2Rx4 CL52 1.1V ECC RDIMM Supermicro H13SSL-N memory upgrade

SKU CH-H7XR-39CPF

64GB DDR5 6400 registered ECC RDIMM with 2Rx4 layout, CL52 latency and 1.1V operation, validated for Supermicro H13SSL-N motherboards

  • Total capacity64 GB
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 64 GB DDR5 capacity for large memory workloads
  • 6400 MT/s speed with CL52 latency for responsive throughput
  • 1 V operation reduces power draw per module
  • ECC and registered design detects errors and stabilises full slots
  • Exact fit for Supermicro H13SSL-N motherboard
  • 288-pin RDIMM form factor matches the board's memory slots

Exact-match DDR5 RDIMM upgrade

This 64GB DDR5-6400 (PC5-51200) module uses a 2Rx4 registered ECC design at 1.1V with CL52 timing. It fits the 288-pin RDIMM slots on the Supermicro H13SSL-N motherboard and is recognized at full capacity and rated speed without manual configuration. Builders who need a different form factor such as UDIMM or SODIMM cannot use this module.

Sustained enterprise workloads

Registered architecture offloads the memory controller so every populated slot runs at the full 6400 MT/s data rate under continuous load. ECC corrects single-bit errors on the fly, preventing silent data corruption and unplanned reboots during long-running production tasks. The fixed 1.1V operating voltage keeps power draw stable across all ranks.

Thermal and power profile

No heat spreader is fitted, so airflow across the bare DRAM is required for normal server cooling. At 1.1V the module draws minimal power per DIMM while delivering 64GB capacity, and registered buffering reduces electrical load on the memory controller. Systems with restricted DIMM airflow or limited fan headers should verify thermal headroom before full population.

How it compares

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

Price $2,208.99
Pricier than about 70% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $34.52 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 numberMR51200-924K1
Total capacity64 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 DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How much heat and power does the 1.10V DDR5 6400 RDIMM produce when the server runs continuously?

At 1.10V the registered DDR5 modules draw minimal power per stick, and the lack of a heat spreader means they rely on the chassis airflow that the H13SSL-N platform already provides for sustained operation.

What motherboard slot and population rules must my Supermicro H13SSL-N already have free for this 2Rx4 kit to be recognised?

The board needs an open 288-pin RDIMM slot and must follow its documented population order; the 2Rx4 registered DIMM will only initialise at 6400 MT/s when installed in a supported channel sequence.

Will this CL52 registered ECC module run at full speed alongside older DDR5 RDIMMs I keep in the other channels?

The memory controller will down-clock every populated channel to the slowest common timing and voltage, so mixing different CAS latencies or ranks forces the entire bank to run at the lowest shared speed.

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