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Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 512GB 8x64GB DDR5 4800 CL40 1.1V 2Rx4 ECC RDIMM Supermicro H14SSF memory upgrade

SKU CH-J98P-P99AW

512GB DDR5 4800 CL40 1.1V 2Rx4 ECC RDIMM kit for Supermicro H14SSF servers

  • Total capacity512 GB (8 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 512GB 8X64GB

Show 24 more
  • 512 GB total capacity with eight 64 GB modules
  • DDR5 4800 speed rated at PC5-38400 bandwidth
  • CL40 latency at 1.1 V operating voltage
  • 2Rx4 registered ECC design for error correction
  • 288-pin RDIMM form factor built for Supermicro H14SSF

Supermicro H14SSF memory upgrade

This 512GB kit contains eight 64GB DDR5 RDIMMs built to the exact rank, voltage and timing the Supermicro H14SSF memory controller expects. Registered ECC architecture allows every slot to be populated at full capacity while correcting single-bit errors before they reach production workloads.

Sustained load behaviour

Registered buffering offloads the memory controller so all eight modules operate continuously at the rated 4800 speed without the signal degradation that unbuffered layouts exhibit under full population. ECC correction runs in-line, preventing silent data corruption during extended compute runs.

DDR5 interface limits

The 288-pin RDIMM form factor and 1.1V operation are fixed by the DDR5 standard this board implements; UDIMM or SODIMM modules will not fit or function. Maximum capacity and population order remain governed by the motherboard manual, which must be consulted before installation.

How it compares

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

Price $12,265.99
Pricier than about 90% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (8 × 64 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $23.96 per GB
Pricier than about 69% 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 numberMR38400-924K8
Total capacity512 GB (8 × 64 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 items512 GB 8 × 64 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

How much power does the 1.1V DDR5 4800 kit draw when all eight 64GB modules run continuously?

The modules operate at 1.10V; total power depends on your server's memory controller load and population rules, so consult the Supermicro H14SSF manual for exact figures.

What must my Supermicro H14SSF motherboard already support to use this 8x64GB 2Rx4 registered ECC kit?

The board needs eight 288-pin DDR5 RDIMM slots, registered ECC support, and a memory controller qualified for 2Rx4 64GB modules at 4800MT/s.

Will the registered ECC design keep all eight slots stable at full 512GB capacity alongside any existing DDR5 DIMMs?

Registered buffering offloads the controller so every populated slot runs at rated speed, while ECC corrects single-bit errors to prevent data corruption.

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