We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four green DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR5 6400 CL52 1.1V 4Rx4 ECC RDIMM Supermicro X14SDW-36CE-SP9F memory upgrade

SKU CH-RPHD-W5THT

256 GB DDR5 ECC registered kit (4 × 64 GB) running at 6400 MHz CL52 1.1 V, validated for Supermicro X14SDW-36CE-SP9F

  • Capacity256GB (4 x 64GB)
  • Type288-Pin DDR5 RDIMM
  • SpeedDDR5 6400 (PC5 51200)
  • CAS LatencyCL52
  • Voltage1.10V
  • ECCYes

Size 256GB 4X64GB

  • 256 GB total capacity in a 4 × 64 GB kit enables maximum memory density
  • DDR5 6400 speed with CL52 latency delivers rated throughput for the platform
  • 1 V operation matches the motherboard's voltage requirement for stable full-population use
  • Registered ECC design with 4Rx4 rank corrects single-bit errors and offloads the memory controller
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-36CE-SP9F motherboard exactly

Exact-match 256 GB DDR5 server kit

This 256 GB kit contains four 64 GB DDR5-6400 registered ECC RDIMMs built to the precise rank, voltage and timing the Supermicro X14SDW-36CE-SP9F memory controller expects so the system recognises the full capacity at rated speed. It targets administrators who need maximum supported memory on this specific platform without compatibility guesswork.

288-pin registered ECC build quality

Each module uses a 288-pin RDIMM form factor with 4Rx4 organisation and 1.1 V operation, exactly matching the board's electrical and mechanical requirements. Registered buffering offloads the memory controller so every slot runs fully populated while on-die ECC corrects single-bit errors before they reach production workloads.

Upgrade from partial or lower-capacity kits

Replacing smaller or mixed-capacity DIMM sets with this matched 4×64 GB kit removes population-order restrictions and unlocks the full 256 GB ceiling the motherboard supports. The jump is worth it when workloads demand maximum registered ECC capacity at DDR5-6400 speed and the board manual confirms this exact configuration.

Highlights

  • 256 GB total capacity in a 4 × 64 GB kit enables maximum memory density
  • DDR5 6400 speed with CL52 latency delivers rated throughput for the platform
  • 1 V operation matches the motherboard's voltage requirement for stable full-population use
  • Registered ECC design with 4Rx4 rank corrects single-bit errors and offloads the memory controller
  • 288-pin RDIMM form factor fits the Supermicro X14SDW-36CE-SP9F motherboard exactly

Specifications

BrandNEMIX RAM
SeriesNEMIX RAM Original Series Server Memory
ModelDDR5 ECC RDIMM Registered Server Memory
Part NumberMR51200-944K4
Capacity256GB (4 x 64GB)
Type288-Pin DDR5 RDIMM
SpeedDDR5 6400 (PC5 51200)
CAS LatencyCL52
Voltage1.10V
ECCYes
Buffered/RegisteredRegistered
Rank4Rx4
ChipsetMajor OEM Samsung, Micron, Hynix
Heat SpreaderNo
Compatible SystemSupermicro
FeaturesDDR5 ECC RDIMM Motherboard Compatible
Package Content256GB 4X64GB DDR5 6400MHz PC5-51200 4Rx4 1.1V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What speed does the DDR5 6400 interface run at on the Supermicro X14SDW-36CE-SP9F?

The kit operates at DDR5 6400 (PC5-51200) with CL52 latency at 1.1V, matching the memory controller's rated speed for full-capacity recognition.

Which physical slot and form factor do these modules need on the Supermicro X14SDW-36CE-SP9F?

They require 288-pin DDR5 RDIMM slots; the board uses registered DIMMs, not UDIMM or SODIMM, and the kit provides four 64GB modules for full population.

What is the correct installation order for the four 64GB RDIMMs on this motherboard?

Consult the Supermicro X14SDW-36CE-SP9F manual for the approved DIMM population sequence; registered ECC modules must be installed in the specific slot order the firmware expects.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.