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Eight green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 1TB 8x128GB DDR5 5600 ECC RDIMM 4Rx4 CL46 1.1V 288-pin Dell PowerEdge XE9685L memory upgrade

SKU CH-FPYD-QMY8T

Eight 128 GB DDR5 5600 ECC registered DIMMs add 1 TB to a Dell PowerEdge XE9685L server

  • Total capacity1 TB (8 × 128 GB)
  • Rated speedDDR5 5600 (PC5 44800)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL46
  • Buffer typeRegistered
  • Rated voltage1.1 V

Size 1TB 8X128GB

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Speed 5600MHz

  • 1TB total capacity across eight 128GB modules
  • DDR5 5600 speed for high-throughput server workloads
  • ECC registered design protects data integrity
  • 1V operation reduces power draw per module
  • Validated for Dell PowerEdge XE9685L rack servers

System-specific 1 TB kit

This 1 TB memory kit contains eight 128 GB DDR5 ECC RDIMM modules built for the Dell PowerEdge XE9685L rack server. Registered buffering and on-die ECC protect data integrity in enterprise workloads. The 288-pin form factor matches the platform's memory slots exactly. No heat spreaders are included, so airflow management follows the server's original design.

Thermals and power at 1.1 V

Each module operates at 1.10 V, the standard DDR5 voltage for registered DIMMs at this speed. Lower voltage reduces per-module heat output compared with higher-voltage alternatives. Passive cooling relies on the chassis fans directed across the DIMM rows. Power draw scales with the eight-module population and the 5600 MT/s data rate.

Sustained load behaviour

CL46 latency and the 4Rx4 rank structure support steady throughput during extended compute tasks. Registered signalling helps maintain signal quality across all populated channels under continuous utilisation. The kit is validated for compatibility with the target server platform to avoid training failures during prolonged operation. Capacity remains fixed at 1 TB unless modules are added or removed.

How it compares

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

Price $34,736.99
Pricier than about 94% of the 21,161 comparable items (median $397.99).
Total capacity 1 TB (8 × 128 GB)
Higher than about 93% of the 20,941 comparable items (median 32 GB).
Price per GB $34.74 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 numberMR44800-744K8
Total capacity1 TB (8 × 128 GB)
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 5600 (PC5 44800)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL46
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank4Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items1 TB (8 × 128 GB) DDR5 5600 MHz PC5-44800 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

How do I install the eight 128GB DDR5 RDIMMs into the PowerEdge XE9685L, and which 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 most people skip is verifying the memory configuration in the BIOS after the first boot so the 1TB kit is recognised correctly.

What maintenance or replacement will this 1TB DDR5 ECC kit need over its service life?

The registered DDR5 modules have no moving parts and require no scheduled maintenance; replacement is only necessary if a module fails, which is covered by the manufacturer's lifetime replacement warranty.

What limit appears first when the 4Rx4 DDR5 5600 memory runs under sustained load?

The CAS latency of CL46 at 5600 MT/s sets the timing boundary, so sustained workloads will hit latency constraints before the 1.1V voltage or registered buffer become limiting factors.

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