We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two green 288-pin DDR5 RDIMM modules with black chips, no heat spreader

NEMIX RAM

NEMIX RAM 128GB (2x64GB) DDR5 4800 CL40 2Rx4 ECC RDIMM Dell PowerEdge XR7620 memory upgrade

SKU CH-SWHX-FD10A

A 128GB dual-rank DDR5 4800 CL40 registered ECC kit for Dell PowerEdge XR7620 servers

  • Total capacity128 GB (2 × 64 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB total capacity from two 64GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth
  • ECC registered design protects data integrity
  • CL40 latency at 1.1V operating voltage
  • 288-pin 2Rx4 RDIMM built for Dell PowerEdge XR7620

Dell PowerEdge XR7620 memory kit

This 128 GB kit contains two 64 GB DDR5 registered DIMMs built for the Dell PowerEdge XR7620 rack server. ECC and registered buffering protect data integrity in mission-critical workloads. The modules run at 4800 MT/s with CL40 latency at 1.1 V. No heat spreaders are fitted.

288-pin RDIMM form factor

Each module uses the standard 288-pin DDR5 RDIMM connector, so installation follows the server's documented memory population rules. Registered signalling reduces electrical load on the memory controller, allowing the full two-module population. The 2Rx4 organisation matches the platform's supported rank configuration.

DDR5 4800 registered ECC limits

The DDR5 4800 interface caps transfer rate at 38 400 MB/s per module, and CL40 latency is fixed by the JEDEC base specification. Registered ECC operation adds one cycle of command buffering, which cannot be disabled. Systems that require unbuffered or non-ECC memory cannot use this kit.

How it compares

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

Price $3,204.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (2 × 64 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $25.04 per GB
Pricier than about 70% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K2
Total capacity128 GB (2 × 64 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 rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items128 GB (2 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory KIT

Questions about this item

What speed does the DDR5 4800 interface run at in this kit?

The modules operate at DDR5 4800 (PC5-38400) with a CAS latency of CL40.

What physical slot and form factor are required for these 288-pin RDIMMs?

They fit a standard 288-pin DDR5 RDIMM slot; no heat spreader is present, so clearance is minimal.

How do I install the two 64 GB modules in a Dell PowerEdge XR7620, and what step is often missed?

Power down, open the chassis, align each module with the keyed slot and press firmly until the ejector clips lock; the step often missed is verifying the memory configuration in the BIOS after boot.

More in Model-Specific Memory Upgrades

Similar items