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NEMIX RAM

NEMIX RAM DDR5 1TB 8x128GB 4800MHz CL40 ECC RDIMM Supermicro H14SSL-N memory upgrade

SKU CH-1GWQ-Y74PC

Eight 128 GB DDR5 RDIMMs deliver 1 TB of registered ECC memory at 4800 MHz CL40 for the Supermicro H14SSL-N

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered
  • 1TB kit delivers maximum server capacity with eight 128GB modules
  • DDR5 4800 speed matches the motherboard's rated memory controller frequency
  • Registered ECC architecture corrects single-bit errors and offloads the controller
  • CL40 latency at 1.1V provides the exact timing and voltage the board expects
  • 288-pin RDIMM form factor fits the Supermicro H14SSL-N memory slots

Supermicro H14SSL-N memory kit

This 1 TB kit contains eight 128 GB DDR5 registered ECC RDIMMs built for the Supermicro H14SSL-N motherboard. Each module runs at 4800 MT/s with CL40 latency at 1.10 V using a 2Rx4 organisation. The registered design lets the memory controller drive a fully populated system without signal degradation.

Upgrade from partial or slower DDR5 configurations

Replacing a smaller or mixed-capacity set with this matched 8 x 128 GB kit removes population mismatches and lets every channel run at the rated 4800 MT/s. The jump is worthwhile when the workload needs the full 1 TB address space and the board’s population rules require identical ranks and voltages across all slots.

DDR5 registered DIMM limits

Registered DDR5 modules add a buffer that stabilises heavy loads but introduces one extra cycle of latency compared with unbuffered alternatives. The 288-pin form factor fits only DDR5 RDIMM slots; it cannot be used in UDIMM or SODIMM sockets. Maximum capacity and speed still depend on the motherboard’s qualified vendor list and the processor’s integrated memory controller.

How it compares

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

Price $29,095.99
Pricier than about 93% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $29.10 per GB
Pricier than about 82% 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 numberMR38400-724K8
Total capacity1 TB (8 × 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 items1 TB 8 × 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

Will the 288-pin RDIMM modules fit the Supermicro H14SSL-N DIMM slots?

Yes, the kit uses 288-pin DDR5 RDIMM form factor that matches the H14SSL-N motherboard slots exactly.

What is the correct population order for the 8x128GB 2Rx4 modules?

Follow the H14SSL-N manual for approved DIMM population order; fully populate all channels with identical 2Rx4 registered modules.

Do the modules need active cooling since they lack heat spreaders?

Standard server airflow over the bare DRAM is sufficient; no additional cooling is required for 1.1V DDR5 RDIMM operation.

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