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Green bare circuit board DDR5 RDIMM 16GB 4800 CL40 1.1V 288-pin ECC registered memory module

NEMIX RAM

NEMIX RAM 16GB DDR5 4800 CL40 1.1V 1Rx8 ECC RDIMM Dell PowerEdge XE9640 memory upgrade

SKU CH-P2XB-ZGE4E

16 GB DDR5-4800 ECC registered RDIMM for Dell PowerEdge XE9640 servers

  • Total capacity16 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 16 GB DDR5 4800 adds capacity for heavy workloads
  • ECC registered design protects data integrity in servers
  • 1 V operation reduces power draw under load
  • 1Rx8 single-rank layout keeps signal timing clean
  • 288-pin RDIMM fits Dell PowerEdge XE9640 slots

Dell PowerEdge XE9640 DDR5 module

This 16 GB DDR5 4800 MHz registered ECC RDIMM is built for the Dell PowerEdge XE9640 rack server. It delivers error-correcting, buffered memory for enterprise workloads that require data integrity and stable operation. The module runs at 1.1 V with CL40 latency and a single-rank 1Rx8 organisation. It targets IT teams upgrading or maintaining this specific server platform.

288-pin RDIMM installation notes

The 288-pin form factor fits standard DDR5 RDIMM slots on the XE9640 motherboard. Registered modules must populate slots in the order defined by the server’s memory population rules; mixing registered and unbuffered DIMMs will prevent boot. Handle the module by the edges to avoid contaminating the gold contacts. No heat spreader is present, so airflow across the PCB is required for thermal management.

Pre-order compatibility checks

Confirm the system is a Dell PowerEdge XE9640 and that the BIOS revision supports DDR5 4800 registered ECC memory. Verify the number of available RDIMM slots and the maximum capacity per channel allowed by the processor installed. Ensure the operating system and applications can utilise ECC functionality. Cross-reference the part number MR38400-618K1 with Dell’s qualified vendor list for this server.

How it compares

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

Price $440.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $27.56 per GB
Pricier than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-618K1
Total capacity16 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 rank1Rx8
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items16 GB (1 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How can I verify the 4800 MT/s speed and CL40 latency are active after installing the module in my Dell PowerEdge XE9640?

Enter the system BIOS or iDRAC interface and confirm the memory runs at 4800 MT/s with CL40 timings at 1.1 V.

What is included in the package and do I need any extra parts for installation?

The box contains one 16 GB 288-pin DDR5 RDIMM; no additional components are required for installation in a compatible Dell PowerEdge XE9640 slot.

Which capacity and rank option should I select for a single-module upgrade?

Choose the 16 GB 1Rx8 module (part number MR38400-618K1) for a single-DIMM upgrade to the Dell PowerEdge XE9640.

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