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Four green DDR5 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM DDR5 4800 256GB 4x64GB ECC RDIMM CL40 2Rx4 1.1V Supermicro H14DST-FL memory upgrade

SKU CH-RFGW-DW5RB

256 GB DDR5-4800 ECC RDIMM kit (4 × 64 GB, CL40, 1.1 V, 2Rx4) validated for the Supermicro H14DST-FL motherboard

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 4800 (PC5 38400)
  • CAS LatencyCL40
  • Voltage1.10V
  • ECCYes

Size 256GB 4X64GB

Show 30 more configurations
  • 256 GB total capacity lets the Supermicro H14DST-FL run fully populated at rated speed
  • Registered ECC architecture corrects single-bit errors on the fly to prevent silent data corruption
  • DDR5 4800 CL40 timing matches the board's memory controller for immediate recognition at full frequency
  • 1 V operation with 2Rx4 organisation offloads the controller for stable performance across all four slots
  • 288-pin RDIMM form factor is the exact module type the H14DST-FL requires for this configuration

Exact-Match DDR5 Server Kit

This 256GB kit contains four 64GB DDR5 4800 registered ECC RDIMMs built to the precise specifications of the Supermicro H14DST-FL motherboard. The modules operate at 1.10V with CL40 latency and a 2Rx4 rank structure so the memory controller recognises the full capacity at rated speed.

2Rx4 Registered ECC Architecture

The registered buffer offloads the memory controller allowing every slot to run fully populated while ECC corrects single-bit errors on the fly. This combination prevents silent data corruption and unplanned reboots in production environments.

256GB Capacity For Dense Workloads

Four 64GB modules fill the board's DDR5 slots to deliver maximum registered memory capacity for virtualisation, database and compute tasks. Systems needing more than 256GB or unbuffered DIMM support will require a different platform.

Highlights

  • 256 GB total capacity lets the Supermicro H14DST-FL run fully populated at rated speed
  • Registered ECC architecture corrects single-bit errors on the fly to prevent silent data corruption
  • DDR5 4800 CL40 timing matches the board's memory controller for immediate recognition at full frequency
  • 1 V operation with 2Rx4 organisation offloads the controller for stable performance across all four slots
  • 288-pin RDIMM form factor is the exact module type the H14DST-FL requires for this configuration

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR38400-924K4
Capacity256GB (4 x 64GB)
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 Content256GB 4X64GB DDR5 4800MHz PC5-38400 2Rx4 1.1V 288-PIN ECC RDIMM KIT

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Questions about this item

Will the DDR5-4800 speed run at its rated 4800 MHz in a Supermicro H14DST-FL?

Yes, the kit is an exact-match upgrade with the precise rank, voltage and timing the board's memory controller expects, so it is recognised at full capacity and runs at its rated DDR5-4800 speed.

What does the registered ECC RDIMM design actually do for a fully populated server?

Registered buffering offloads the memory controller so every slot runs fully populated at full capacity, while ECC catches and corrects single-bit errors on the fly to stop silent data corruption and unplanned reboots.

Does the 288-pin RDIMM form factor fit the H14DST-FL DIMM slots without adapters?

Yes, the 288-pin Registered RDIMM form factor is exactly what the Supermicro H14DST-FL requires; it is not a UDIMM or SODIMM and matches the board's memory-population rules.

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