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Eight green DDR5 RDIMM sticks in a row

NEMIX RAM

NEMIX RAM 1TB (8x128GB) DDR5 6400MHz CL52 4Rx4 ECC RDIMM Dell PowerEdge XE9685L memory upgrade

SKU CH-PYYE-Q55K1

Eight 128 GB DDR5 ECC RDIMM modules at 6400 MHz CL52 1.1 V for Dell PowerEdge XE9685L servers

  • Total capacity1 TB (8 × 128 GB)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL52
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • Memory rank4Rx4

Size 1TB 8X128GB

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Speed 6400MHz

  • 1TB capacity with eight 128GB modules for large-scale workloads
  • DDR5 6400MHz speed for high-throughput server applications
  • ECC registered design detects and corrects data errors
  • 4Rx4 organisation maximises density per DIMM slot
  • 1V operation reduces power draw in dense configurations

Dell PowerEdge XE9685L memory kit

This 1 TB kit contains eight 128 GB DDR5 registered DIMMs built for the Dell PowerEdge XE9685L rack server. Each module operates at 6400 MHz with a CAS latency of 52 and runs at 1.1 V. The ECC RDIMM design targets enterprise workloads that demand data integrity and maximum installed capacity.

Registered 288-pin DDR5 RDIMM form factor

The modules use the standard 288-pin DDR5 RDIMM connector and a 4Rx4 rank organisation. Registered buffering reduces electrical load on the server memory controller, allowing all eight slots to be populated without signal degradation. No heat spreaders are fitted, so airflow in the chassis must handle thermal management.

DDR5 6400 MHz platform limit

The memory controller in the qualified platform sets the effective ceiling at 6400 MHz; faster modules will down-clock to this rate. Total capacity is capped by the number of DIMM slots and the 4Rx4 rank density the board accepts. Buyers needing higher frequencies or lower latencies must verify motherboard support before ordering.

How it compares

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

Price $35,106.99
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 $35.11 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 numberMR51200-744K8
Total capacity1 TB (8 × 128 GB)
Product type288-Pin DDR5 RDIMM
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL52
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 6400 MHz PC5-51200 4Rx4 1.1 V 288-PIN ECC RDIMM KIT

Other versions of this model

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Questions about this item

What DDR5 standard and speed does this 1TB kit use, and what bandwidth does it provide?

The kit runs at DDR5 6400MHz (PC5-51200), delivering up to 51200 MB/s of peak bandwidth per module.

What physical slot and pin count do these 128GB modules require?

Each 128GB module is a 288-pin DDR5 RDIMM designed for server DIMM slots that accept registered ECC memory.

How do I install the eight modules in the PowerEdge XE9685L, and which step is often missed?

Populate all eight slots following the server's memory-configuration guide; the step most often missed is verifying the population order in the BIOS after installation.

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