Corsair

Corsair CMK5X32G2A48C40A2 32GB

Summary:: 32GB DDR5 Desktop DIMM RAM Module

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Manufacturer: Corsair Last updated: 2026-09-14

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Corsair CMK5X32G2A48C40A2 32GB Review

Need a single high-capacity 32GB DDR5 stick without paying kit prices? The Corsair CMK5X32G2A48C40A2 is a standalone Vengeance module at DDR5-4800 CL40, JEDEC's base DDR5 speed.

This is Corsair's slowest DDR5 bin sold as a single 32GB stick, 4800MT/s is the DDR5 JEDEC floor, so it's a capacity play rather than a performance one. True latency of 16.7ns is well behind Corsair's 6000MT/s single-module Vengeance sticks.

Performance

4800MT/s CL40 works out to 16.7ns true latency, the weakest speed bin in Corsair's single-module DDR5 lineup. If your board and CPU support anything above 5600MT/s, a faster single stick like CMK5X32G2B60C40A2 at 6000MT/s will feel noticeably snappier for the same 32GB capacity.

Compatibility and Buying Advice

4800MT/s runs on essentially any DDR5 platform without compatibility concerns, which is really this module's main selling point, it's the safest bet for an older or budget motherboard that isn't validated much past JEDEC speeds.

Our verdict

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

Best for

Filling a single DDR5 slot on a budget or older motherboard with limited memory-speed validation
Maximum single-stick capacity when speed isn't the priority

Not for

Gaming or productivity builds where memory bandwidth matters, pick a 6000MT/s single stick instead
New builds needing dual-channel, buy a matched kit

Specifications

What these specs mean

Speed Score

5.3/10

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

Identity

Peak Bandwidth	38.4 GB/s
Brand	Corsair
Part Number	CMK5X32G2A48C40A2

Memory

DDR Generation	DDR5
Capacity	32 GB
Speed	4800 MT/s
CAS Latency	40
Module Count	1

Physical

RGB Lighting	No

Module and platform

RAM Segment	Desktop DDR5
Form Factor	Desktop DIMM
Platform Optimisation	AM5

Capacity

Capacity Per Module	32 GB

Speed and timings

True Latency	16.7 ns

Overclocking profile

XMP Support	Yes
XMP Version	XMP 3.0
EXPO Support	No

Silicon

Memory IC	Undisclosed

Physical and lighting

Colour	Black

FAQs

What are the key specifications of the Corsair CMK5X32G2A48C40A2 32GB?

Key specs for the Corsair CMK5X32G2A48C40A2 32GB: Capacity Per Module 32 GB, Capacity 32 GB, Speed 4800 MT/s, OC Profile XMP 3.0, DDR Generation DDR5, Part Number CMK5X32G2A48C40A2.

Will the Corsair CMK5X32G2A48C40A2 32GB work with my current setup?

The Corsair CMK5X32G2A48C40A2 32GB lists DDR Generation is DDR5. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits. Our upgrade checker at /upgrade can confirm compatibility for common combinations.

Who is the Corsair CMK5X32G2A48C40A2 32GB best suited to?

Best suited to: Filling a single DDR5 slot on a budget or older motherboard with limited memory-speed validation; Maximum single-stick capacity when speed isn't the priority.

What are the drawbacks of the Corsair CMK5X32G2A48C40A2 32GB?

Not the best fit for: Gaming or productivity builds where memory bandwidth matters, pick a 6000MT/s single stick instead; New builds needing dual-channel, buy a matched kit.