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
Eight green DDR5 RDIMM modules in a row

NEMIX RAM

NEMIX RAM 128GB (8x16GB) DDR5 4800 CL40 1.1V ECC RDIMM memory upgrade for Dell PowerEdge XE9640

SKU CH-E8MV-MGA3G

128 GB of DDR5 ECC registered server memory in eight 16 GB modules running at 4800 MHz CL40 1.1 V for Dell PowerEdge XE9640

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 128GB total capacity across eight 16GB modules
  • DDR5 4800 speed with PC5-38400 bandwidth rating
  • ECC registered design detects and corrects data errors
  • 1V operating voltage reduces server power draw
  • 288-pin RDIMM form factor built for Dell PowerEdge XE9640

Capacity and Configuration

This kit provides 128GB of DDR5 memory across eight 16GB RDIMM modules. It is built for administrators expanding Dell PowerEdge XE9640 rack servers that require registered ECC memory for stable operation under heavy workloads.

Registered ECC with 1Rx8 Organisation

Each module uses a 1Rx8 layout and operates at 4800 MT/s with CL40 latency at 1.10V. The registered buffer and on-die ECC protect data integrity in multi-socket configurations where unbuffered or non-ECC memory would be unsupported.

288-Pin DDR5 Form Factor

The 288-pin RDIMM design fits the XE9640 memory slots directly and requires a platform that supports DDR5 registered DIMMs at 4800 MT/s. Builders needing unbuffered DIMMs, lower capacities or different speeds 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 $3,396.99
Pricier than about 74% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $26.54 per GB
Pricier than about 73% 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 numberMR38400-618K8
Total capacity128 GB (8 × 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 items128 GB (8 × 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 much total memory does the 128GB kit add to a Dell PowerEdge XE9640?

The kit provides 128GB total, delivered as eight 16GB modules that install together for the full capacity.

What does the DDR5 4800 PC5-38400 rating mean for actual data throughput in the server?

The modules run at 4800 MT/s with a PC5-38400 bandwidth ceiling, and the registered ECC design keeps that speed stable under sustained load.

Will the 288-pin RDIMM modules fit the memory slots in a PowerEdge XE9640 without extra hardware?

Yes, the 288-pin DDR5 RDIMM form factor matches the server's DIMM slots exactly, so they seat directly with no adapters.

More in Model-Specific Memory Upgrades

Similar items