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

NEMIX RAM

NEMIX RAM DDR5 5600 ECC RDIMM 256GB 4x64GB CL46 1.1V Supermicro H14SSF memory upgrade

SKU CH-A00J-CXFVP

256 GB DDR5 5600 ECC RDIMM kit in four 64 GB modules at 1.1 V CL46 for the Supermicro H14SSF motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 24 more
  • 256 GB total capacity from four 64 GB modules for maximum server density
  • DDR5 5600 speed with CL46 latency delivers rated bandwidth at 1.1 V
  • Registered ECC architecture corrects single-bit errors and offloads the memory controller
  • 288-pin RDIMM form factor matches the Supermicro H14SSF motherboard exactly
  • Lifetime replacement warranty with US-based technical support included

256GB DDR5 5600 ECC RDIMM kit

This 256GB kit contains four 64GB DDR5 5600 registered ECC DIMMs built for the Supermicro H14SSF motherboard. Each module runs at 1.1V with CL46 latency and a 2Rx4 organisation. The registered design allows full population of every slot on this platform.

Capacity and headroom

Four ranks per channel give the memory controller the density it expects for 256GB operation at rated speed. Workloads that fit within this footprint run with ECC protection and no downclocking. Applications needing more than 256GB per board must use a platform that supports larger DIMMs or additional channels.

DDR5 288-pin RDIMM limits

The 288-pin registered form factor is mandatory for this motherboard; unbuffered or SO-DIMM modules will not fit or function. DDR5 5600 (PC5-44800) is the maximum JEDEC speed this kit guarantees; overclocking or mixing speeds is not supported by the server memory controller.

How it compares

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

Price $7,035.99
Pricier than about 83% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $27.48 per GB
Pricier than about 77% 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 numberMR44800-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Memory rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 4 × 64 GB DDR5 5600 MHz PC5-44800 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Will the 256GB kit (4 x 64GB) run at DDR5 5600 on my Supermicro H14SSF alongside existing DDR5 RDIMMs?

The kit is spec-matched to the H14SSF memory controller at 5600 MT/s, CL46, 1.1 V, 2Rx4 registered ECC; match rank, voltage and timing in the remaining slots for stable operation.

How can I verify the 288-pin RDIMMs are recognised at full 256GB capacity after installation?

Check the BIOS memory map or OS reporting (e.g., dmidecode) — all four 64 GB modules should appear at DDR5 5600 with ECC enabled and no correctable-error spikes.

What ships in the 256GB kit and do I need any extra parts for the H14SSF?

The box contains four 64 GB DDR5 5600 CL46 1.1 V 288-pin ECC RDIMMs; no cables, brackets or additional components are required for the H14SSF DIMM slots.

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