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Green circuit board with gold contacts and black memory chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 2Rx4 CL40 1.1V ECC RDIMM Supermicro H13DSG-O-CPU memory upgrade

SKU CH-BAWT-7RFPS

128GB DDR5 4800 ECC registered RDIMM validated for Supermicro H13DSG-O-CPU at CL40 and 1.1V

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

Size 128GB

Show 30 more
  • 128GB DDR5-4800 capacity recognised at full speed by Supermicro H13DSG-O-CPU
  • 2Rx4 Registered ECC architecture offloads controller and corrects single-bit errors on the fly
  • 1V CL40 timing matches board memory-controller expectations for stable operation
  • 288-pin RDIMM form factor fits the exact slot type the motherboard requires
  • Lifetime replacement warranty with free US-based technical support included

Server-grade capacity for Supermicro H13DSG-O-CPU

This 128GB DDR5 4800 module delivers registered ECC memory tuned to the exact rank, voltage, and timing the board expects. It targets administrators upgrading or populating that specific Supermicro server platform. Buyers needing unbuffered UDIMM or SODIMM form factors cannot use this kit.

Registered architecture for full-slot population

The 288-pin RDIMM design offloads the memory controller, allowing every supported slot to run fully populated at rated speed without signal degradation. ECC corrects single-bit errors on the fly to prevent silent data corruption and unplanned reboots. Consult the motherboard manual for approved population order and maximum capacity per channel before installation.

Single-module kit with lifetime backing

The package contains one 128GB DDR5 4800 CL40 1.1V 2Rx4 RDIMM ready for immediate installation. No heat spreader is included, so airflow in the chassis must meet the server's thermal requirements. Lifetime replacement coverage and US-based technical support are provided by the manufacturer.

How it compares

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

Price $3,892.99
Pricier than about 76% 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 $30.41 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 numberMR38400-724K1
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

Does the 2Rx4 registered ECC design let all slots run at 4800 MHz when fully populated?

Yes, the registered architecture offloads the memory controller so every slot runs fully populated at the rated 4800 MHz speed.

How much heat and power should I expect from this 1.10 V module during continuous operation?

At 1.10 V with no heat spreader, the module runs cool and draws minimal power, suited for 24/7 server workloads.

My Supermicro H13DSG-O-CPU board needs DDR5 RDIMMs — will this 288-pin kit install without extra parts?

Yes, the 288-pin DDR5 RDIMM form factor matches the board's slots exactly; no adapters or other components are required.

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