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Four green DDR5 RDIMM sticks, bare chips, no heat spreaders

NEMIX RAM

NEMIX RAM 256GB (4x64GB) DDR5 4800 CL40 ECC RDIMM for ASUS Pro WS WRX90E SAGE SE memory upgrade

SKU CH-BWV6-V8DPE

256GB kit of four 64GB DDR5 ECC registered DIMMs at 4800MHz CL40 for ASUS Pro WS WRX90E SAGE SE workstations

  • Total capacity256 GB (4 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V

Capacity 256GB 4X64GB

Show 3 more
  • 256 GB capacity across four 64 GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design for data integrity
  • CL40 latency at 1.10 V operation
  • Validated for ASUS Pro WS WRX90E SAGE SE

Capacity and Compatibility

This 256GB kit provides four 64GB DDR5 ECC RDIMM modules built for the ASUS Pro WS WRX90E SAGE SE workstation. Registered buffering and error correction protect data integrity in multi-threaded professional workloads. The modules run at 1.10V with a CL40 latency profile. Buyers who need non-ECC memory or consumer UDIMM form factors cannot use this kit.

Sustained Load Behaviour

Under continuous operation the registered design reduces electrical load on the memory controller, helping maintain stability during long render or compute sessions. ECC circuitry detects and corrects single-bit errors without halting the system. The 4800 MT/s data rate delivers consistent throughput for memory-bound server applications. Workloads that demand higher frequencies or lower latencies will not reach their targets with these specifications.

Installation Notes

Each 288-pin RDIMM seats in the standard DDR5 slots of the validated motherboard; no heat spreader is fitted, so clearance is minimal. The motherboard manual should be followed for population order to enable quad-channel operation. Mixing these modules with different capacities, ranks or voltages will prevent the system from posting. Buyers who cannot access the firmware memory-training logs may find troubleshooting difficult.

How it compares

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

Price $6,309.99
Pricier than about 82% 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 $24.65 per GB
Pricier than about 69% 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 DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K4
Total capacity256 GB (4 × 64 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsASUS
In the box
Included items256 GB (4 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

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Questions about this item

How much power does the 1.10V DDR5 kit draw when the workstation runs all day?

Each 64 GB module operates at 1.10 V, so the four-DIMM kit runs at standard DDR5 voltage without extra power overhead.

What must the ASUS Pro WS WRX90E SAGE SE motherboard already support to use this 288-pin registered ECC memory?

The board needs DDR5 RDIMM slots that accept 2Rx4 registered ECC modules at 4800 MT/s.

Will the CL40 4800 MT/s modules downclock cleanly if I keep older DDR5 DIMMs in the other channels?

All four sticks run at DDR5 4800 CL40; mixing different speeds or latencies forces the memory controller to run every channel at the slowest common setting.

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