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Green bare circuit board DDR5 RDIMM memory module with black chips and gold contacts

NEMIX RAM

NEMIX RAM 128GB DDR5 4800 CL40 2Rx4 ECC Registered RDIMM memory upgrade

SKU CH-Z7TN-5J0DQ

128 GB DDR5 4800 CL40 2Rx4 ECC registered RDIMM validated for Supermicro H13SST-GC motherboards

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

Size 128GB

Show 24 more
  • 128 GB capacity fills every slot on the Supermicro H13SST-GC motherboard
  • Registered ECC architecture corrects single-bit errors to prevent silent data corruption
  • DDR5 4800 speed with CL40 latency matches the board's rated timing exactly
  • 1 V operation reduces power draw while maintaining enterprise stability
  • 288-pin RDIMM form factor ensures physical and electrical compatibility with the server

128 GB DDR5 ECC RDIMM for Supermicro H13SST-GC

This 128 GB DDR5-4800 registered ECC module is built for the Supermicro H13SST-GC motherboard. It delivers the exact 2Rx4 rank structure, 1.1 V operating voltage and CL40 timing the platform expects so the full capacity is recognised at rated speed. The 288-pin RDIMM form factor matches the board's memory-population rules precisely. It suits administrators who need maximum density per slot in a verified server configuration.

Thermals noise and power in normal use

Operating at 1.1 V, the module draws minimal power for its capacity, reducing heat output inside a fully populated chassis. No heat spreader is fitted, so airflow across the DIMM slots handles cooling without added acoustic load. Registered buffering lightens the electrical load on the memory controller, helping stability when every slot is filled. The combination keeps thermals and noise predictable in dense server deployments.

Upgrade path and when the jump is worth it

This kit replaces lower-capacity DDR5 RDIMMs or fills empty slots to reach the motherboard's supported maximum. The jump is worth it when workloads demand more memory per channel than smaller modules provide and the board's population rules allow the 2Rx4 configuration. Buyers who need a different rank structure, voltage or form factor should verify compatibility before ordering.

How it compares

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

Price $4,239.99
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 $33.12 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

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Questions about this item

How do I install this 128GB DDR5 RDIMM in my Supermicro H13SST-GC motherboard and what step is often missed?

Power down the server, open the chassis, and insert the 288-pin module into the DIMM slot specified by the motherboard manual for single-module or first-population configurations; the step most often missed is confirming the exact slot order required by the board's memory-population rules before seating the RDIMM.

What maintenance or replacement will this 128GB DDR5 4800 CL40 ECC Registered RDIMM need over its service life?

No routine maintenance is required for the module itself; keep the server's air filters clean and verify ECC corrected-error counters in the BMC or OS logs periodically, replacing the RDIMM only if uncorrectable errors appear or a firmware update changes the qualified-vendor list.

What limit appears first when this 128GB DDR5 4800 2Rx4 Registered ECC RDIMM runs sustained workloads?

The DDR5-4800 CL40 timing and 1.10V operating voltage set the bandwidth and latency ceiling; under sustained load the memory controller's thermal-throttling point or the board's maximum supported capacity per channel will be reached before the module's own rating is exceeded.

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