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Green circuit board DDR5 RDIMM module with black heat spreader and gold contacts

Crucial

Crucial 128GB DDR5 RDIMM 6400 CL52 2Rx4 (32Gbit) Single Pack

SKU CH-CM7K-SPHAW

Registered DDR5 module delivers 128 GB at 6400 MHz with CL52 latency

  • 128 GB capacity handles large workloads
  • DDR5 architecture delivers 6400 MHz speed
  • CL52 latency supports responsive operation
  • 2Rx4 organisation with 32 Gbit density

128 GB DDR5 RDIMM for servers

This 128 GB DDR5 registered DIMM runs at 6400 MHz with CL52 latency. The 2Rx4 organisation uses 32 Gbit density chips in a single module. It is built for workstations and servers that require registered memory.

Thermals and power in normal use

Registered DDR5 modules include an on-die power management IC that regulates voltage locally. Typical operation stays within standard DDR5 thermal limits without additional cooling. Power draw scales with the 6400 MHz data rate and 128 GB capacity.

How it compares

Measured against everything we stock in Desktop RAM, at today’s prices. Recalculated every night.

Price $7,340.99
Pricier than about 91% of the 3,647 comparable items (median $90.99).

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

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 128GB DDR5 RDIMM 2Rx4 module in my desktop?

Power off the system, open the case, align the notch on the module with the slot key, press firmly until the retention clips click, then power on and verify 128GB is recognised at 6400MHz in BIOS.

What maintenance or replacement will the 128GB DDR5 RDIMM need over time?

Keep the module and slot contacts free of dust with occasional compressed air; the 2Rx4 DDR5 DRAM has no moving parts or scheduled replacement interval under normal desktop use.

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