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Corsair Vengeance CMK48GX5M2B5200C38 48GB (2x24GB) DDR5 5200MHz CL38 desktop memory kit, black, no RGB
Corsair

Corsair CMK48GX5M2B5200C38

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Key Specs:
DDR5 · 48GB (2x24GB) · 5200MT/s · CL38

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Manufacturer: Corsair Last updated: 2026-09-14

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Corsair CMK48GX5M2B5200C38 Review

At DDR5-5200, the Corsair CMK48GX5M2B5200C38 is a 48GB (2x24GB) desktop memory kit rated CL38, for a true latency of 14.6ns.

Speed and Latency

The number that matters is true latency, not CL alone. Here it is 38 / (5200 / 2) x 1000 = 14.6ns. It is not a latency pick. 90% of the desktop DDR5 kits in our catalog are as tight or tighter.

Platform Fit

This is for DDR5 desktops: AMD AM5 on 600 or 800 series chipsets, and Intel 600, 700 or 800 series boards with DDR5 slots. It physically will not go into a DDR4 board. 5200MT/s runs on any DDR5 board, but AM5 builds get lower latency from a 6000MT/s kit. Profiles: XMP 3.0.

Capacity and Configuration

The two 24GB modules give you dual channel with two slots used. Plan capacity now: adding a second kit for four DDR5 sticks usually forces the memory down well below its rated speed. At 48GB you have room for gaming, streaming and editing without running short.

Build and Cooling

Corsair does not publish the module height, so check your cooler's RAM clearance if you use a large air cooler. Corsair does not disclose which memory chips are used, which matters mainly if you plan to tune timings by hand.

Speed Score

Our DDR5 Speed Score for this kit is 5.5 out of 10, rated from its transfer rate and true latency against other DDR5 kits. Scores only compare within the same DDR generation.

Our verdict

Reviewed by Burooj Alam. Rated by us, not by users.

Best for

    Not for

    • Latency-focused builds: 90% of desktop DDR5 kits are as tight or tighter
    • Manual timing tuning: memory chips are not disclosed
    • Adding a second kit later for four sticks

    Specifications

    What these specs mean
    Speed Score
    5.5/10

    How fast this kit is among DDR5 kits, rated from its speed and latency.

    Identity

    Peak Bandwidth83.2 GB/s
    BrandCorsair
    Part NumberCMK48GX5M2B5200C38

    Memory

    DDR GenerationDDR5
    Capacity48 GB
    Speed5200 MT/s
    CAS Latency38
    Module Count2

    Module and platform

    RAM SegmentDesktop DDR5
    Form FactorDesktop DIMM
    Platform OptimisationAM5

    Capacity

    Capacity Per Module24 GB

    Speed and timings

    True Latency14.6 ns

    Overclocking profile

    XMP SupportYes
    XMP VersionXMP 3.0
    EXPO SupportNo

    Silicon

    Memory ICUndisclosed

    FAQs

    Is the Corsair CMK48GX5M2B5200C38 compatible with my motherboard?

    It fits DDR5 desktop boards (AMD AM5, Intel 600, 700 and 800 series with DDR5 slots). It does not fit DDR4 boards.

    Is 5200MT/s CL38 a good combination?

    It works out to 14.6ns true latency. That is tighter than 10% of the desktop DDR5 kits we list.

    Can I add a second kit later for four sticks?

    It is not recommended. Four DDR5 sticks usually run well below their rated speed. Buy the total capacity you need as one two-stick kit.

    Is 5200MT/s good for AMD Ryzen 7000 and 9000?

    It works on AM5. A 6000MT/s kit gives slightly lower latency on Ryzen 7000 and 9000.

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