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Four green DDR4 RDIMM modules with black chips, no heat spreaders

NEMIX RAM

NEMIX RAM MR25600-924K4 256GB (4×64GB) DDR4 3200 ECC RDIMM memory upgrade

SKU CH-ZENS-F97PY

A 256 GB DDR4-3200 ECC registered server memory kit of four 64 GB modules at 1.2 V with CL22 latency

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR4 3200 (PC4 25600)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL22
  • Buffer typeRegistered
  • Rated voltage1.2 V
  • 256 GB total capacity for heavy workloads
  • Four 64 GB modules fill four slots
  • DDR4 3200 speed with CL22 latency
  • ECC registered design protects data integrity
  • Compatible with ASUS Pro WS WRX80E-SAGE SE WiFi motherboard

256GB DDR4 3200 ECC RDIMM kit

This 256GB kit contains four 64GB DDR4 3200 registered DIMMs with ECC and a CAS latency of CL22. It is built for the ASUS Pro WS WRX80E-SAGE SE WiFi motherboard and runs at 1.2V using 2Rx4 organisation. The modules are 288-pin RDIMMs without heat spreaders.

Sustained load behaviour

Registered buffering and ECC correction keep data integrity stable during continuous server workloads. The 1.2V operating voltage and CL22 timing maintain consistent throughput without the voltage spikes seen in high-frequency consumer kits. Modules are stress tested under load before shipment.

DDR4 RDIMM interface limits

The DDR4 3200 standard caps transfer rates at PC4-25600, so this kit cannot exceed that bandwidth. Registered DIMMs require a motherboard with registered memory support; they will not function in consumer boards that accept only unbuffered modules. Capacity is fixed at 256GB across the four slots.

How it compares

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

Price $1,747.99
Pricier than about 66% 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 $6.83 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineASUS Server Motherboard Compatible Series Memory
Model nameASUS DDR4 3200 MHz ECC RDIMM Registered Server Memory
Part numberMR25600-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR4 RDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL22
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.2 V
Compatibility
Compatible systemsASUS
In the box
Included items256 GB (4 × 64 GB) DDR4 3200 MHz PC4-25600 2Rx4 1.2 V CL22 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

Does the 1.20 V DDR4 3200 kit add noticeable heat or fan noise in a 24/7 server?

The modules run at standard 1.20 V with no heat spreader, so thermal output matches typical registered DDR4; system fan curves will dictate any audible change.

What motherboard feature must the ASUS Pro WS WRX80E-SAGE SE WiFi provide for this 288-pin 2Rx4 ECC RDIMM kit to function?

The board must support registered ECC DDR4 RDIMMs at 3200 MT/s with 2Rx4 organisation and 1.20 V operation across all four slots.

Can the CL22 2Rx4 modules share channels with older DDR4 3200 ECC RDIMMs of different rank or latency?

Mixing ranks or CAS latencies on the same channel is not recommended; the memory controller will down-clock to the slowest common timing and may disable multi-rank optimisations.

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