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Four green DDR5 RDIMM sticks, no heat spreaders, gold contacts, 288 pins each

NEMIX RAM

NEMIX RAM DDR5 512GB (4x128GB) 4800MHz CL40 ECC Registered RDIMM memory upgrade for Supermicro H14DST-FL

SKU CH-GCDJ-H9FJH

512 GB DDR5 server kit with four 128 GB registered ECC RDIMMs at 4800 MHz CL40 1.1 V for Supermicro H14DST-FL

  • Capacity512GB (4 x 128GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 512GB 4X128GB

Show 30 more configurations

Struck-through versions exist but are not stocked here.

  • 512 GB total capacity from four 128 GB modules for maximum server density
  • DDR5-4800 speed with CL40 latency delivers rated bandwidth for demanding workloads
  • Registered ECC architecture offloads the controller and corrects single-bit errors on the fly
  • 10 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin RDIMM form factor verified for the Supermicro H14DST-FL motherboard

Exact-match server memory upgrade

This 512GB kit contains four 128GB DDR5 4800MHz Registered ECC RDIMMs built to the exact rank, voltage and timing the Supermicro H14DST-FL memory controller expects. The modules are recognized at full capacity and run at their rated speed without manual tuning.

For fully-populated enterprise workloads

IT teams running virtualization, databases or high-capacity compute on this specific motherboard get stable operation with every slot filled. Builders needing UDIMM or SODIMM form factors, non-ECC memory or consumer DDR5 speeds should look elsewhere because this kit uses 288-pin Registered RDIMMs only.

512GB headroom for dense VMs and datasets

Four dual-rank 2Rx4 modules at 1.1V deliver the maximum registered capacity this board supports for memory-intensive applications. Workloads that exceed 512GB total system memory or require higher frequencies than DDR5-4800 will need a different platform.

Highlights

  • 512 GB total capacity from four 128 GB modules for maximum server density
  • DDR5-4800 speed with CL40 latency delivers rated bandwidth for demanding workloads
  • Registered ECC architecture offloads the controller and corrects single-bit errors on the fly
  • 10 V operation matches the motherboard's memory-controller specification exactly
  • 288-pin RDIMM form factor verified for the Supermicro H14DST-FL motherboard

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-724K4
Capacity512GB (4 x 128GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 4800 (PC5 38400)
CAS LatencyCL40
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content512GB 4X128GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

Does the Supermicro H14DST-FL motherboard need to support 2Rx4 Registered ECC DDR5 4800 RDIMMs at 1.1V for this kit to work?

Yes, the motherboard must accept 288-pin DDR5 4800 RDIMMs with CL40 timing, 1.1V voltage, 2Rx4 organization and Registered ECC so the 512GB kit is recognized at full capacity and rated speed.

Can I mix these 128GB DDR5 4800 Registered ECC modules with smaller DDR5 RDIMMs already in the server?

Mixing is possible only if the board's memory-population rules allow different capacities per channel; the manual specifies supported DIMM sizes, population order and maximum capacity per slot.

How do I verify the kit is running at DDR5 4800 CL40 with ECC active after installation?

Enter the BIOS or use a hardware-inventory tool to confirm memory speed shows 4800 MT/s, CAS latency reads 40, total capacity reports 512GB and ECC status is enabled.

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