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Two green DDR5 RDIMM modules in static bags, 288-pin gold contacts, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 256GB (2x128GB) CL40 2Rx4 ECC RDIMM Supermicro H13SVW-N memory upgrade

SKU CH-YEEC-BTADP

256 GB (2 × 128 GB) DDR5-4800 ECC registered RDIMM kit, CL40 at 1.1 V, validated for the Supermicro H13SVW-N motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

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Speed 4800MHz

  • 256 GB total capacity from two 128 GB modules for maximum server memory density
  • DDR5 4800 speed rated at PC5-38400 for high-throughput workloads
  • Registered ECC architecture with 2Rx4 rank corrects single-bit errors and offloads the memory controller
  • CL40 latency at 1.10 V delivers efficient operation within spec
  • 288-pin RDIMM form factor verified for Supermicro H13SVW-N motherboard compatibility

256GB DDR5-4800 ECC RDIMM kit for Supermicro

This 256GB kit contains two 128GB DDR5-4800 registered ECC modules built to the PC5-38400 standard with CL40 timing and 1.10V operation. The 2Rx4 288-pin RDIMM form factor matches the exact rank, voltage and timing the H13SVW-N memory controller expects for full-capacity recognition at rated speed. It is intended for administrators expanding a Supermicro H13SVW-N server with enterprise-grade stability.

Verify motherboard population rules

Before ordering, consult the Supermicro H13SVW-N manual for approved DIMM population order, maximum supported capacity per slot and any BIOS version requirements. The board requires registered RDIMMs; UDIMM or SODIMM modules will not fit or function. Confirm the server's memory-configuration limits to ensure the 2x128GB arrangement is valid for your specific chassis and processor configuration.

Lifetime replacement warranty

The kit ships with a lifetime replacement warranty and access to free US-based technical support for installation and troubleshooting assistance. No heat spreaders are included on the modules, so airflow in the server chassis must be adequate for bare DRAM operation. The registered architecture offloads the memory controller to maintain stability when all slots are fully populated.

How it compares

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

Price $7,826.99
Pricier than about 84% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $30.57 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 numberMR38400-724K2
Total capacity256 GB (2 × 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 items256 GB 2 × 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

Does the 256GB kit arrive as two 128GB modules or must I buy them separately?

The kit contains two 128GB DDR5 RDIMMs; nothing else is required to reach 256GB.

Should I choose the CL40 2Rx4 version or a different latency and rank for the H13SVW-N?

The board expects DDR5-4800 2Rx4 registered ECC at 1.1V CL40; this exact specification matches the motherboard's qualified configuration.

What does the PC5-38400 rating mean when the memory is installed in the server?

It indicates a peak transfer rate of 38400 MT/s at DDR5-4800, which the memory controller will use when all slots are populated with these registered ECC modules.

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