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Eight green DDR5 RDIMM modules in anti-static packaging

NEMIX RAM

NEMIX RAM 384GB (8x48GB) DDR5-6400 CL52 2Rx8 ECC RDIMM Supermicro H14DSH

SKU CH-5EAF-7K8PQ

A 384 GB DDR5-6400 ECC RDIMM kit of eight 48 GB modules at CL52, 1.1 V, 2Rx8, validated for the Supermicro H14DSH motherboard

  • Total capacity384 GB (8 × 48 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 384 GB total capacity from eight 48 GB modules for high-density server workloads
  • DDR5-6400 speed with CL52 latency delivers rated throughput for Supermicro H14DSH
  • Registered ECC RDIMM architecture offloads the memory controller and corrects single-bit errors
  • 10 V operation matches the platform's voltage requirement for stable full-population runs
  • 288-pin RDIMM form factor fits the board's memory slots exactly as specified

Exact-match upgrade kit

This 384GB kit contains eight 48GB DDR5-6400 PC5-51200 registered ECC RDIMMs built to CL52 timings at 1.1V. The modules use a 2Rx8 organization and 288-pin form factor that the Supermicro H14DSH memory controller expects for full-capacity recognition and rated-speed operation.

Installation and common issues

The RDIMMs insert into the board's 288-pin DDR5 slots like any registered DIMM, but the server manual defines the exact population sequence for eight modules. Deviating from that order or mixing ranks is the most frequent cause of a no-post condition or reduced capacity.

Pre-order verification

Confirm the H14DSH manual lists 48GB RDIMMs in an eight-DIMM configuration and note the required slot-filling order. Verify the BIOS revision supports this density at DDR5-6400 before ordering, because unsupported firmware will limit speed or prevent boot.

How it compares

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

Price $10,043.99
Pricier than about 87% of the 21,161 comparable items (median $397.99).
Total capacity 384 GB (8 × 48 GB)
Higher than about 85% of the 20,941 comparable items (median 32 GB).
Price per GB $26.16 per GB
Pricier than about 72% 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 numberMR51200-4828K8
Total capacity384 GB (8 × 48 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 items384 GB 8 × 48 GB DDR5 6400 MHz PC5-51200 2Rx8 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I confirm the 384GB kit is running at DDR5-6400 CL52 after installing it in my Supermicro H14DSH?

Check the BIOS memory information screen or a tool like dmidecode; each of the eight 48GB RDIMMs should report 6400 MT/s, CL52, 1.1 V and 2Rx8 registered ECC operation.

What exactly ships in the MR51200-4828K8 box and do I need any extra parts for the H14DSH?

The box contains eight 48GB DDR5-6400 288-pin ECC registered RDIMMs — nothing else is required; the motherboard supplies the slots and power.

My H14DSH manual lists several DDR5 speed bins — why choose this 6400 CL52 2Rx8 kit over a different one?

This kit matches the board's qualified 6400 MT/s, CL52, 1.1 V, 2Rx8 registered ECC specification so all eight slots populate at rated speed without down-clocking.

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