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Four green DDR5 RDIMM modules without heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 512GB 4x128GB DDR5 6400MHz CL52 1.1V ECC RDIMM SYS-222HA-TN memory upgrade

SKU CH-PHBM-EKE2E

Four 128 GB DDR5 modules deliver 512 GB of registered ECC memory at 6400 MHz CL52 for the Supermicro SYS-222HA-TN

  • Total capacity512 GB (4 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank2Rx4
  • 512 GB total capacity from four 128 GB modules
  • ECC RDIMM registered design protects data integrity
  • DDR5 6400 MHz speed for high-throughput workloads
  • Low 1.1 V operating voltage reduces power draw
  • Validated for Supermicro SYS-222HA-TN servers

Server-grade DDR5 ECC RDIMM kit

This 512GB kit contains four 128GB registered DDR5 modules built for the Supermicro Hyper SuperServer SYS-222HA-TN. Error-correcting code and registered buffering protect data integrity in multi-socket workloads. The CL52 latency and 6400MHz transfer rate match the platform’s qualified memory profile. Buyers needing non-ECC or unbuffered DIMMs for consumer boards cannot use this kit.

Thermals and power profile

Each module operates at 1.10V without a heat spreader, relying on the server’s directed airflow for cooling. Registered buffering reduces electrical load on the memory controller, helping keep system power draw predictable under sustained throughput. Acoustic output is determined entirely by the chassis fans; the DIMMs themselves add no moving parts. Builds without forced-air cooling across the memory slots should verify thermal margins before deployment.

Package contents and practical impact

The box delivers four 288-pin DDR5 RDIMMs totalling 512GB, labelled PC5-51200 2Rx4 CL52. No software, drivers or additional accessories are included; installation is a physical memory upgrade only. The registered ECC design enables the platform’s full RAS feature set once the system BIOS recognises the modules. Systems limited to lower capacities or consumer memory topologies will not accept this configuration.

How it compares

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

Price $16,604.99
Pricier than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 512 GB (4 × 128 GB)
Higher than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $32.43 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 lineNEMIX RAM Original Series Server Memory
Model nameDDR5 ECC RDIMM Registered Server Memory
Part numberMR51200-724K4
Total capacity512 GB (4 × 128 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsSupermicro
In the box
Included items512 GB (4 × 128 GB) DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

Questions about this item

How do I install the four 128GB DDR5 RDIMM modules in the SuperMicro SYS-222HA-TN, and what step is often missed?

Power down the server, open the chassis, and seat each 288-pin module fully until the ejector clips click. The step often missed is verifying the motherboard's DIMM population order in the manual so the 2Rx4 ranks initialise in the correct channels.

What maintenance or replacement will this 512GB ECC RDIMM kit need over its service life?

No scheduled maintenance is required for the modules themselves. Keep the server's air filters clean so the 1.1V DDR5 chips stay within thermal limits, and run the platform's built-in memory diagnostics after any firmware update to catch correctable ECC events early.

What limit appears first when this CL52 6400MHz kit runs sustained workloads on the SYS-222HA-TN?

The 288-pin DDR5 RDIMM's 1.10V operating voltage and CL52 latency set the electrical and timing envelope; under continuous load the memory controller's thermal throttling point is typically reached before the modules hit their rated speed ceiling.

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