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Two green DDR5 RDIMM sticks without heat spreaders, 288-pin, 64GB kit

NEMIX RAM

NEMIX RAM 64GB 2x32GB DDR5 4800 CL40 ECC RDIMM Supermicro H13SSF memory upgrade

SKU CH-B4RY-GX4CG

A 64 GB DDR5 4800 ECC registered RDIMM kit built to the Supermicro H13SSF memory controller's exact rank, voltage and timing requirements

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 64GB 2X32GB

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  • 64 GB total capacity from a matched 2 × 32 GB kit for full-channel bandwidth
  • DDR5 4800 (PC5-38400) speed with CL40 latency runs at rated frequency on the Supermicro H13SSF
  • Registered ECC RDIMM with 2Rx8 organization offloads the memory controller and corrects single-bit errors
  • 10 V operating voltage and 288-pin form factor match the board's electrical and mechanical requirements
  • Built with major OEM Samsung, Micron or Hynix DRAM chips for enterprise-grade reliability

Supermicro H13SSF DDR5 upgrade

This 64GB kit contains two 32GB DDR5-4800 Registered ECC RDIMMs built for the Supermicro H13SSF motherboard. The 288-pin modules run at 1.1V with CL40 timing and a 2Rx8 rank structure that matches the board's memory controller requirements.

Replacing slower or smaller DDR5 RDIMMs

Swapping out lower-capacity DDR5 Registered ECC modules or slower DDR5 speeds lets the server populate every slot at the rated 4800MT/s without downclocking. The jump is worthwhile when the workload needs full-slot population and error correction at the board's native memory speed.

64GB capacity for dense virtualization

Two 32GB ranks give 64GB total, enough for moderate virtualization clusters, database buffers, or container hosts that fit in registered memory channels. Workloads that exceed per-channel limits or need higher frequencies than DDR5-4800 will require a different platform.

How it compares

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

Price $1,947.99
Pricier than about 68% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $30.44 per GB
Pricier than about 87% 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 numberMR38400-328K2
Total capacity64 GB (2 × 32 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items64 GB 2 × 32 GB DDR5 4800 MHz PC5-38400 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

Will these 288-pin RDIMMs fit the Supermicro H13SSF DIMM slots?

Yes, the kit uses the 288-pin DDR5 RDIMM form factor required by the Supermicro H13SSF motherboard, so the modules seat directly in the board's memory slots without adapters.

What is the correct installation sequence for the two 32 GB modules on the H13SSF?

Install the first module in the slot designated as DIMM 1 in the motherboard manual, then add the second module in the next slot following the board's population order; skipping the primary slot is the common mistake that prevents the system from recognising the full 64 GB capacity.

How do I know when a module should be replaced in a production server?

Monitor the system event log for corrected ECC error counts; a rising trend of single-bit corrections or any uncorrectable error indicates the affected 32 GB RDIMM should be swapped out to maintain data integrity.

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