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
Two green 288-pin DDR5 RDIMM modules without heat spreaders

NEMIX RAM

NEMIX RAM 256GB (2x128GB) DDR5 6400 CL52 4Rx4 ECC RDIMM Supermicro X14SDV-36C-SP3F memory upgrade

SKU CH-4R45-FM9HV

256 GB DDR5 6400 CL52 4Rx4 ECC registered RDIMM kit built for the Supermicro X14SDV-36C-SP3F motherboard

  • Total capacity256 GB (2 × 128 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 2X128GB

  • 256 GB total capacity from two 128 GB modules for dense server workloads
  • DDR5 6400 speed rated at CL52 latency for high-throughput data handling
  • 4Rx4 registered ECC design corrects single-bit errors to protect data integrity
  • 1 V operating voltage matches the Supermicro X14SDV-36C-SP3F memory controller spec
  • 288-pin RDIMM form factor ensures mechanical and electrical fit in the target board

Server Memory Kit for Supermicro X14SDV-36C-SP3F

This 256GB kit contains two 128GB DDR5 RDIMM modules built for the Supermicro X14SDV-36C-SP3F motherboard. It targets administrators who need to populate every slot with registered ECC memory that the platform recognises at full capacity.

Registered 4Rx4 ECC at DDR5 6400 CL52

Each module is a 288-pin Registered DIMM running at DDR5 6400 (PC5-51200) with CL52 latency and 1.1V operation. The 4Rx4 organisation and registered buffer match the board's memory-controller requirements so the system boots at rated speed without down-clocking.

Low-Voltage Operation and Thermal Profile

At 1.1V the modules draw minimal power for their density, keeping heat output low inside a fully populated server chassis. No heat spreaders are fitted, so airflow across the bare PCBs handles cooling silently in normal rack environments.

How it compares

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

Price $8,956.99
Pricier than about 86% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (2 × 128 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $34.99 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-744K2
Total capacity256 GB (2 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 6400 (PC5 51200)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Memory rank4Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB 2 × 128 GB DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

5 more in the same range

Questions about this item

What does the 6400 MT/s speed mean once these modules are installed in the Supermicro X14SDV-36C-SP3F?

The memory controller will run the kit at its rated DDR5 6400 (PC5-51200) data rate, delivering the full 51200 MB/s bandwidth per module when all slots are populated per the board's population rules.

How does the 288-pin RDIMM interface and registered design affect what the motherboard can actually use?

The 288-pin RDIMM form factor with registered architecture is required by this board; it offloads the memory controller so every slot runs fully populated at the rated 6400 speed and 256 GB total capacity.

What physical clearance and slot requirements do the 128 GB 4Rx4 modules need to fit?

Each 288-pin DDR5 RDIMM occupies one standard DIMM slot; the kit includes two modules, so two adjacent slots following the motherboard's population order are required for the full 256 GB upgrade.

More in Model-Specific Memory Upgrades

Similar items