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Four green DDR5 RDIMM modules without heat spreaders, 288-pin registered ECC memory kit

NEMIX RAM

NEMIX RAM DDR5 6400 256GB 4x64GB CL52 1.1V 2Rx4 ECC RDIMM ASRock Rack TURIN2D16-2T/ROT memory upgrade

SKU CH-6BQ0-01JW5

256GB kit of four 64GB DDR5-6400 registered ECC RDIMMs at 1.1V CL52, validated for the ASRock Rack TURIN2D16-2T/ROT motherboard

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 6400 (PC5 51200)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Rated voltage1.1 V
  • Buffer typeRegistered

Size 256GB 4X64GB

Show 4 more
  • Full 256 GB capacity with four 64 GB DDR5 6400 modules
  • Registered ECC design corrects single-bit errors for server stability
  • 10 V operation matches platform specs for reliable boot
  • 2Rx4 rank layout enables full-slot population at rated speed
  • 288-pin RDIMM form factor fits ASRock Rack TURIN2D16-2T/ROT exactly

Exact-match server upgrade

This 256 GB kit delivers four 64 GB DDR5 RDIMMs rated at 6400 MT/s with CL52 latency and 1.1 V operation. Registered ECC circuitry and 2Rx4 organisation meet the ASRock Rack TURIN2D16-2T/ROT memory controller requirements for full-capacity recognition at rated speed.

Sustained-load behaviour

Registered buffering reduces electrical load on the memory controller so all slots stay stable when fully populated during continuous workloads. ECC detects and corrects single-bit errors on the fly, preventing silent data corruption that could otherwise cause unplanned reboots in production environments.

Build and daily implications

Modules use major OEM Samsung, Micron or Hynix components without heat spreaders, relying on server chassis airflow for cooling. The 288-pin RDIMM form factor fits only registered DIMM slots; UDIMM or SODIMM systems cannot accept these modules. Consult the motherboard manual for approved population order before installation.

How it compares

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

Price $8,183.99
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 $31.97 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 numberMR51200-924K4
Total capacity256 GB (4 × 64 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 rank2Rx4
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASRock Rack
In the box
Included items256 GB 4 × 64 GB DDR5 6400 MHz PC5-51200 2Rx4 1.1 V 288-PIN ECC RDIMM KIT

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Questions about this item

How much power does the 1.1V DDR5 6400 kit draw when the server runs continuously?

Each module operates at 1.1V. Total power depends on the ASRock Rack TURIN2D16-2T/ROT memory controller load; registered buffering reduces electrical load per slot.

What motherboard slot and population rules must my ASRock Rack TURIN2D16-2T/ROT already have free for this 4x64GB kit?

The board needs four free 288-pin DDR5 RDIMM slots. Follow the manual's population order for 2Rx4 registered modules to reach 256GB at 6400 MT/s.

Will these CL52 2Rx4 registered ECC modules work alongside any older DDR5 RDIMMs I keep in the same TURIN2D16-2T/ROT?

Mixing ranks, speeds or latencies can force the controller to downclock all channels. For stable 6400 MT/s operation, populate all four slots with this matched 2Rx4 CL52 kit.

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