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Two green DDR5 RDIMM sticks, no heat spreaders, 288 pins each

NEMIX RAM

NEMIX RAM 32GB (2x16GB) DDR5 4800 CL40 ECC RDIMM memory upgrade for Dell PowerEdge XR7620

SKU CH-KKF5-3D6D4

Registered DDR5 server kit delivering 32 GB across two 16 GB ECC RDIMM modules at 4800 MT/s for Dell PowerEdge XR7620

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • ECC protection ensures data integrity for critical workloads
  • Registered design stabilises signal quality in multi-module server configurations
  • DDR5 4800 speed delivers high bandwidth for demanding applications
  • 1 V operation reduces power draw per module
  • Validated compatibility with Dell PowerEdge XR7620 rack servers

Dell PowerEdge XR7620 DDR5 ECC RDIMM Kit

This 32GB kit contains two 16GB DDR5 4800 CL40 registered DIMMs built for the Dell PowerEdge XR7620 rack server. ECC and registered buffering protect data integrity in mission-critical workloads. The modules operate at 1.1V and use 288-pin DDR5 RDIMM form factor.

Installation and common issues

Installation follows the server manual and typically takes minutes per module. The registered design requires motherboard support for RDIMM; mixing with unbuffered DIMMs will prevent boot. Ensure all slots are populated per Dell's population rules for the XR7620.

DDR5 4800 interface limits

DDR5 4800 (PC5-38400) sets the maximum transfer rate; the memory controller cannot exceed this speed without overclocking, which servers typically disable. CL40 latency is fixed at this data rate. Capacity per channel is limited by the number of 288-pin slots the XR7620 provides.

How it compares

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

Price $829.99
Pricier than about 58% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $25.94 per GB
Pricier than about 71% 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 numberMR38400-618K2
Total capacity32 GB (2 × 16 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 items32 GB (2 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

How do I confirm the NEMIX RAM kit is running at DDR5 4800 CL40 after installing it in my PowerEdge XR7620?

Enter the system BIOS or use a hardware-monitoring utility to verify the reported speed shows 4800 MT/s and the CAS latency reads CL40; ECC and registered status should also be listed as active.

What does the package contain and do I need any extra parts for the Dell PowerEdge XR7620?

The box includes two 16 GB DDR5 4800 CL40 1.10 V 288-pin ECC RDIMM modules (32 GB total); no additional components are required for installation in the compatible server.

Which capacity kit should I choose if I want 32 GB total for the XR7620?

Select the 32 GB kit (2 × 16 GB, part number MR38400-618K2) — it delivers the full 32 GB in a matched pair validated for the PowerEdge XR7620.

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