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Four green DDR5 RDIMM modules without heat spreaders in a 512GB kit

NEMIX RAM

NEMIX RAM DDR5 512GB 4x128GB 4800MHz CL40 ECC RDIMM Supermicro H13SSL-N

SKU CH-ZKFG-2MBPQ

512 GB DDR5 server kit with four 128 GB ECC registered DIMMs running at 4800 MHz CL40 1.1 V for Supermicro H13SSL-N

  • Total capacity512 GB (4 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 4X128GB

Show 24 more
  • 512 GB total capacity from four 128 GB modules for maximum server memory density
  • DDR5 4800 MT/s speed with CL40 latency delivers rated bandwidth for demanding workloads
  • Registered ECC architecture corrects single-bit errors and stabilises fully populated channels
  • 1 V operating voltage matches the motherboard memory controller specification exactly
  • Validated compatibility with the Supermicro H13SSL-N motherboard ensures correct fit and recognition

Purpose-built server upgrade

This 512 GB kit delivers four 128 GB DDR5 RDIMMs tuned for the Supermicro H13SSL-N motherboard. Registered ECC architecture with 2Rx4 organisation offloads the memory controller so every slot runs fully populated at rated speed while correcting single-bit errors on the fly. The modules operate at 1.1 V with CL40 latency at 4800 MT/s.

Verify before ordering

Check your system or motherboard manual for supported capacities, approved DIMM population order, and installation steps before purchase. The board requires 288-pin Registered RDIMMs; UDIMM or SODIMM variants will not fit or function. Confirm that your configuration allows four dual-rank modules at the rated voltage and timing.

Daily operation

Major-brand Samsung, Micron, or Hynix chips are mounted without heat spreaders, relying on server chassis airflow for cooling. The 288-pin registered connectors seat securely in the motherboard slots, and the buffered design maintains signal integrity across all four populated channels. Lifetime replacement coverage and free US-based technical support back the kit.

How it compares

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

Price $16,402.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $32.04 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 numberMR38400-724K4
Total capacity512 GB (4 × 128 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB 4 × 128 GB DDR5 4800 MHz PC5-38400 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What is included in the 512GB kit and do I need to buy anything else?

The kit contains four 128GB DDR5 4800MHz CL40 2Rx4 1.1V ECC Registered RDIMMs for a total of 512GB. No extra modules or accessories are required for installation.

How do I choose between the listed versions or capacities for my Supermicro H13SSL-N?

This is a single 512GB kit of four 128GB modules. Select this kit when your board's memory population rules call for four registered DIMMs at DDR5 4800 with 2Rx4 organisation.

What does the 4800MHz rating mean once the memory is installed in the server?

The modules will run at DDR5 4800 (PC5 38400) with CL40 latency at 1.1V, delivering the exact speed and timing the motherboard's memory controller expects when fully populated.

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