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Sixteen green DDR5 RDIMM modules in anti-static tray

NEMIX RAM

NEMIX RAM 256GB (16x16GB) DDR5 4800 CL40 1Rx8 ECC RDIMM Dell PowerEdge XR7620 memory upgrade

SKU CH-JHTR-P09SK

256 GB kit of sixteen 16 GB DDR5 4800 CL40 ECC registered DIMMs for Dell PowerEdge XR7620 servers

  • Total capacity256 GB (16 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 256GB kit expands server capacity for demanding workloads
  • 16 modules of 16GB each simplify full population
  • DDR5 4800 speed with CL40 latency supports high throughput
  • ECC registered design protects data integrity under load
  • 1V operation reduces power draw in dense configurations

Dell PowerEdge XR7620 memory kit

This 256GB kit contains sixteen 16GB DDR5 4800 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 with a CAS latency of CL40.

DDR5 4800 registered DIMM limits

Registered DIMMs add a clock cycle of buffering that stabilises heavy loads but prevents use in consumer boards that expect unbuffered modules. ECC requires a platform with ECC-capable memory controllers and BIOS support. Mixing ranks or speeds can disable ECC or down-clock the entire array.

256GB capacity in sixteen slots

The kit fills all sixteen DIMM slots with 1Rx8 modules, delivering maximum density for the XR7620. Systems with fewer slots or a lower per-slot limit cannot use the full kit. Buyers needing partial population or a different rank configuration should select a smaller kit.

How it compares

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

Price $6,588.99
Pricier than about 82% of the 21,161 comparable items (median $397.99).
Total capacity 256 GB (16 × 16 GB)
Higher than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $25.74 per GB
Pricier than about 70% 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 numberMR38400-618K16
Total capacity256 GB (16 × 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 items256 GB (16 × 16 GB) DDR5 4800 MHz PC5-38400 1Rx8 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

Should I populate all 16 slots with this 16x16GB kit or can I mix smaller modules?

This kit provides 16 matched 16GB modules for a total of 256GB, designed to fill the Dell PowerEdge XR7620 memory slots with identical 1Rx8 registered DIMMs for stable operation.

What does the 4800 speed rating deliver inside the XR7620?

The modules run at DDR5 4800 (PC5-38400) with CL40 latency at 1.10V, giving the server its rated memory bandwidth when all channels are populated with these registered ECC DIMMs.

Does the 288-pin DDR5 RDIMM interface limit capacity or speed on this platform?

The 288-pin registered DDR5 form factor is the standard for the XR7620, supporting ECC and registered signalling at the rated 4800 MT/s without downclocking when installed as a full 16-module kit.

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