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Green printed circuit board with black memory chips and gold edge contacts 288 pin DIMM

Crucial

Crucial MTC20F1045S1RC64BR 32GB DDR5 6400MHz desktop RAM

SKU CH-R99H-9FBAF MPN MTC20F1045S1RC64BR

32 GB DDR5 desktop module running at 6400 MT/s with CL52 latency and 1.1 V operation

  • 32GB capacity supports heavy multitasking and large datasets
  • 6400 MT/s DDR5 speed delivers high memory bandwidth
  • CL52 latency provides responsive data access timing
  • 1 V operation reduces power draw and heat
  • 288-pin registered DIMM ensures stable signal integrity

32GB DDR5 6400MHz module

This 32GB DDR5 module runs at 6400 MT/s with CL52 latency and 1.1V voltage. It is built for desktop systems that accept registered 288-pin DIMMs. The PC5-51200 rating reflects its peak transfer capability.

Registered 288-pin DIMM build

The registered signal processing adds a buffer between the memory controller and the DRAM, which helps stability in dense configurations. Its 288-pin DIMM form factor fits standard desktop slots, while the 1.1V operating voltage aligns with the DDR5 baseline. The module carries Micron branding and the MTC20F1045S1RC64BR part number.

DDR5 6400 MT/s practical limits

Registered DIMMs require a platform that explicitly supports registered memory; consumer desktop chipsets typically do not. The CL52 timing is the rated latency at 6400 MT/s and cannot be assumed to scale tighter without validation. Buyers who need unbuffered memory for standard consumer boards should select a different module type.

Highlights

  • 32GB capacity supports heavy multitasking and large datasets
  • 6400 MT/s DDR5 speed delivers high memory bandwidth
  • CL52 latency provides responsive data access timing
  • 1 V operation reduces power draw and heat
  • 288-pin registered DIMM ensures stable signal integrity

Specifications

No published specifications for this item yet.

Questions about this item

Does the 6400 MT/s speed run at that rate on any motherboard?

The module is rated at 6400 MT/s (PC5-51200). Actual speed depends on the motherboard and CPU memory controller; it will operate at the highest common speed both support.

What physical slot does the 288-pin DIMM need?

It fits a standard 288-pin DDR5 DIMM slot. The registered design adds a buffer, so the board must support registered memory.

Is any BIOS step required to reach CL52 at 1.1 V?

Enable the XMP or EXPO profile in BIOS to apply the rated 6400 MT/s, CL52 timings and 1.1 V voltage; leaving defaults will run slower speeds.

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