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MEMORY · VERIFIED EXACT MEMORY KIT

Corsair
Vengeance 128 GB DDR5-5600 CL40 XMP

Corsair Vengeance 128 GB DDR5-5600 CL40 XMP is the exact CMK128GX5M4B5600C40 DDR5 UDIMM configuration: 128 GB (4 × 32 GB), 5600 MT/s, CL40, Intel XMP 3.0 and 1.25 V. The capacity, module count, memory generation and profile remain tied to this exact kit.

Reference: Exact ram · MPN CMK128GX5M4B5600C40 · ASIN B0CFZGFGZNMPN: CMK128GX5M4B5600C40Form factor: DDR5 UDIMMKit: 128 GB (4 × 32 GB) · DDR5 UDIMMRated speed: 5600 MT/sTimings: CL40
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Corsair Vengeance 128 GB DDR5-5600 CL40 XMP
MODEL PHOTOExact model shown
Best forCompatible desktop boards that accept DDR5 UDIMM.
Also strongBuyers who need 128 GB (4 × 32 GB) and have verified CMK128GX5M4B5600C40 against the system or motherboard QVL.
Main limit5600 MT/s is the rated or supported profile; actual startup and stable speed can be lower until firmware settings and platform limits are confirmed.
Check firstDDR5 UDIMM cannot be substituted with laptop SODIMM; connector shape and electrical support differ.
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EXACT MEMORY SHEET

MPN-specific identity, specifications, compatibility and buyer guidance

Confirmed specifications

  • MPN: CMK128GX5M4B5600C40
  • Form factor: DDR5 UDIMM
  • Kit: 128 GB (4 × 32 GB) · DDR5 UDIMM
  • Rated speed: 5600 MT/s
  • Timings: CL40
  • Profile: Intel XMP 3.0
  • Voltage: 1.25 V
  • Default behavior: Four modules may need a lower stable speed than the advertised profile
  • Compatibility: Desktop DDR5 only · verify the exact system or motherboard support list

Identity and platform check

MPN: CMK128GX5M4B5600C40

Amazon.ca ASIN: B0CFZGFGZN

  • 5600 MT/s is the rated or supported profile; actual startup and stable speed can be lower until firmware settings and platform limits are confirmed.
  • DDR5 UDIMM cannot be substituted with laptop SODIMM; connector shape and electrical support differ.
  • Do not mix this kit with another MPN and assume the combined configuration will retain CL40.

Good choice for

  • Compatible desktop boards that accept DDR5 UDIMM.
  • Buyers who need 128 GB (4 × 32 GB) and have verified CMK128GX5M4B5600C40 against the system or motherboard QVL.
  • A build that can deliberately enable and validate Intel XMP 3.0.

Real limitations

  • 5600 MT/s is the rated or supported profile; actual startup and stable speed can be lower until firmware settings and platform limits are confirmed.
  • DDR5 UDIMM cannot be substituted with laptop SODIMM; connector shape and electrical support differ.
  • Do not mix this kit with another MPN and assume the combined configuration will retain CL40.

Alternatives

  • A 32 GB DDR5-6000 kit for mainstream desktop gaming.
  • A 64 GB DDR5 kit for heavier creation or virtual machines.
  • A JEDEC SODIMM kit when the destination is a notebook rather than a desktop.
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Product and media sources · checked August 29, 2026Exact manufacturer sheet →Exact-media evidence →Exact CMK128GX5M4B5600C40 module/kit photography corroborated by the manufacturer product specification

FAQ

Questions about this exact CPU or memory kit

How do I verify kit CMK128GX5M4B5600C40?

Match brand, capacity, module count, generation, speed and MPN CMK128GX5M4B5600C40.

Does the advertised speed run automatically?

Four modules may need a lower stable speed than the advertised profile

Can I mix this kit with other memory?

It is not guaranteed. Mixing MPNs, densities, profiles or revisions can reduce stable speed or prevent booting.

What should I check before buying?

Verify UDIMM or SODIMM, DDR4 or DDR5, maximum capacity, QVL, BIOS and physical height when the CPU cooler is nearby.

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