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Four green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM DDR5-4800 256GB (4×64GB) ECC RDIMM CL40 1.1V Supermicro H14DSG-O-CPU

SKU CH-57WR-3PVF4

256 GB DDR5-4800 ECC registered kit in four 64 GB modules at CL40 and 1.1 V for Supermicro H14DSG-O-CPU servers

  • 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 from four 64 GB modules for dense server workloads
  • DDR5-4800 speed with CL40 latency matches the board's rated timing
  • Registered ECC architecture corrects single-bit errors and offloads the memory controller
  • 1 V operating voltage reduces power draw across fully populated slots
  • Verified fit for Supermicro H14DSG-O-CPU using 288-pin RDIMM form factor

Capacity and fit

This 256GB kit contains four 64GB DDR5 ECC Registered RDIMMs built for the Supermicro H14DSG-O-CPU motherboard. The modules arrive new and are intended for servers that require registered memory with error correction.

Decisive specification

The kit runs at DDR5-4800 with a CL40 latency at 1.1V using a 2Rx4 rank structure. This exact speed, voltage, timing and rank combination is what the board's memory controller expects for full-capacity recognition and rated operation.

Thermals and power

Modules operate at the standard 1.1V DDR5 voltage without a heat spreader, relying on chassis airflow for cooling. Registered buffering reduces electrical load on the memory controller, keeping power draw steady across all four populated slots.

Highlights

  • 256 GB total capacity from four 64 GB modules for dense server workloads
  • DDR5-4800 speed with CL40 latency matches the board's rated timing
  • Registered ECC architecture corrects single-bit errors and offloads the memory controller
  • 1 V operating voltage reduces power draw across fully populated slots
  • Verified fit for Supermicro H14DSG-O-CPU using 288-pin RDIMM form factor

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

How does DDR5-4800 CL40 perform once installed in the Supermicro H14DSG-O-CPU?

The kit runs at the rated 4800 MT/s with CL40 timings at 1.1 V, giving the memory controller exactly the speed and latency it expects for full-capacity operation across all populated slots.

What does the 288-pin RDIMM interface limit in practice?

The 288-pin Registered DIMM form factor is required by the board; it will not accept UDIMM or SODIMM modules, and the registered buffer lets every slot run fully populated at the rated speed.

What physical clearance does the 4×64 GB kit need to fit?

Each module is a standard-height 288-pin RDIMM without a heat spreader, so it fits the motherboard's DIMM slots and works within the server chassis clearance specified for that form factor.

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