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Four green DDR5 RDIMM modules without heat spreaders, 256GB kit

NEMIX RAM

NEMIX RAM 256GB (4×64GB) DDR5 6400MHz CL52 ECC RDIMM memory upgrade

SKU CH-3PTC-S7WDD

Four 64 GB DDR5 ECC registered DIMMs totalling 256 GB at 6400 MHz CL52 for Supermicro servers

  • Total capacity256 GB (4 × 64 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4
  • 256 GB total capacity across four 64 GB modules
  • DDR5 6400 MHz speed with CL52 latency for responsive throughput
  • ECC registered design detects and corrects data errors in flight
  • 1 V operation reduces power draw under heavy server loads
  • Validated for Supermicro X14SBM-TP4F platform compatibility

System-Specific DDR5 ECC RDIMM Kit

This 256GB kit contains four 64GB registered DIMMs built for Supermicro X14SBM-TP4F platforms. It targets server and workstation administrators who need validated ECC memory for mission-critical workloads. The modules operate at 1.1V and carry a CL52 latency rating. Each stick uses a 4Rx4 organisation with major OEM DRAM chips.

Thermals and Power Profile

Registered buffering and 1.1V operation keep per-module power draw low in typical server deployments. No heat spreaders are fitted, so airflow across the 288-pin DDR5 RDIMM form factor handles cooling. The kit runs at the rated 6400MHz speed without additional voltage. Acoustic impact is negligible in standard chassis with managed airflow.

Capacity and Rank Configuration

Total capacity is 256GB delivered as a matched 4×64GB set. Each module implements a 4Rx4 rank structure required by the target platform. Buyers needing different densities, unbuffered DIMMs, or non-ECC memory should look elsewhere. The PC5-51200 designation confirms the 6400MHz data rate for compatible Supermicro systems.

How it compares

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

Price $8,161.99
Pricier than about 85% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (4 × 64 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $31.88 per GB
Pricier than about 90% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineSupermicro Compatible Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server RAM
Part numberMR51200-944K4
Total capacity256 GB (4 × 64 GB)
Product type288-PIN DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items256 GB (4 × 64 GB) DDR5 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the 288-pin DDR5 RDIMM modules in the Supermicro X14SBM-TP4F, and which step is commonly missed?

Power down the server, open the chassis, align each module's notch with the slot key, press firmly until both side clips lock, then verify in BIOS that all four 64 GB modules are detected at 6400 MHz; the step often missed is seating the module evenly so both clips engage simultaneously.

What maintenance or replacement will the 4Rx4 ECC RDIMM kit need over its service life?

No scheduled maintenance is required; the modules have no heat spreaders or moving parts, and ECC corrects single-bit errors transparently — only a failed module would need replacement, which is covered by the manufacturer's lifetime replacement warranty.

What limit appears first when the 256 GB kit runs sustained workloads at 1.1 V?

The DDR5 6400 MHz CL52 timing and 1.10 V operating voltage set the thermal and signal-integrity ceiling; under continuous load the memory controller will throttle frequency before voltage or capacity limits are reached.

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