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Green circuit board with black memory chips and gold edge connectors

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 2Rx4 CL40 1.1V ECC RDIMM Supermicro H13SVW-NT-OS1 memory upgrade

SKU CH-S5RR-YK5BB

128GB DDR5 4800 ECC registered RDIMM with CL40 latency and 1.1V operation, validated for Supermicro H13SVW-NT-OS1 motherboards

  • Total capacity128 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 128GB

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  • 128GB DDR5 4800 capacity fills every slot at rated speed
  • CL40 latency and 1.1V voltage match the controller timing exactly
  • Registered ECC architecture corrects single-bit errors before they reach production
  • 2Rx4 288-pin RDIMM form factor fits the Supermicro H13SVW-NT-OS1 motherboard
  • Lifetime replacement warranty with free US-based technical support included

Server-specific DDR5 RDIMM upgrade

This 128GB DDR5 module targets administrators upgrading the Supermicro H13SVW-NT-OS1 platform. Registered ECC architecture ensures stability for virtualization and database workloads. The exact 2Rx4 rank structure matches the motherboard's memory controller requirements.

DDR5 4800 practical limits

Rated at PC5-38400 with CL40 latency at 1.1V, this RDIMM runs at the standard DDR5 4800 ceiling for this platform. Registered buffering allows full-slot population without signal degradation. ECC corrects single-bit errors but does not protect against multi-bit failures.

Installation notes and common issues

The 288-pin keyed connector fits only DDR5 RDIMM slots; UDIMM or SODIMM sockets will reject it. Verify the motherboard manual for approved DIMM population order before seating modules. Mismatched ranks or voltages across channels will prevent the system from posting.

How it compares

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

Price $4,244.99
Pricier than about 77% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $33.16 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 numberMR38400-724K1
Total capacity128 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 items128 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

Should I pick a single 128GB DDR5 4800 RDIMM or combine smaller modules for my Supermicro H13SVW-NT-OS1?

This module is a single 128GB 2Rx4 Registered ECC DIMM rated at DDR5 4800 CL40 1.1V. Using one per slot reaches full capacity per channel and matches the board's registered-DIMM population rules without mixing ranks.

What does the DDR5 4800 rating deliver once the module is installed in the server?

The module runs at 4800 MT/s with CL40 latency at 1.1V, providing the exact bandwidth and timing the memory controller expects for stable full-speed operation in the Supermicro H13SVW-NT-OS1.

How does the 288-pin RDIMM interface and registered ECC design affect real-world limits?

The 288-pin Registered ECC form factor offloads electrical load from the controller, allowing every slot to be populated at 128GB while ECC corrects single-bit errors on the fly to prevent silent data corruption.

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