Consumercarts
Corsair Vengeance CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 4800MHz CL40 desktop memory kit, black, no RGB
Corsair

Corsair CMK64GX5M2A4800C40 64GB

RAMView on corsair.com
Capacity:
64GB (2x32GB)
Speed:
4800MT/s
CAS Latency:
40

Consumercarts is reader-supported. Learn more

Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Manufacturer: Corsair Last updated: 2026-09-14

Corsair CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit Review

If you need 64GB of DDR5 at the safest, most universally-compatible speed, the Corsair CMK64GX5M2A4800C40 is a 2x32GB Vengeance kit running at JEDEC's 4800MT/s base spec.

4800MT/s is the DDR5 floor speed every motherboard supports without any tuning, so this kit trades outright bandwidth for maximum compatibility — a sensible choice if you just need the capacity and don't want to fuss with XMP/EXPO profiles.

Performance

16.7ns true latency at 4800MT/s CL40 is the weakest speed profile among Corsair's 64GB Vengeance kits in this catalog — CMK64GX5M2B6000C40 and CMK64GX5M2B6000C30 both run meaningfully faster at 6000MT/s for a similar total capacity.

Compatibility and Buying Advice

Because 4800MT/s is JEDEC-standard, this kit runs at rated speed on essentially every DDR5 motherboard with zero tuning, including boards that haven't been validated for higher-speed EXPO/XMP profiles. If your platform supports 6000MT/s, the CMK64GX5M2B6000C40 kit gives the same 64GB with much better latency for a modest price step up.

Specifications

Identity

BrandCorsair
Part NumberCMK64GX5M2A4800C40

Memory

DDR GenerationDDR5
Capacity64 GB
Speed4800 MT/s
CAS Latency40
Module Count2

Physical

Form FactorDesktop DIMM
RGB LightingNo

Module and platform

RAM SegmentDesktop DDR5

Capacity

Capacity Per Module32 GB

Speed and timings

True Latency16.7 ns

Silicon

Memory ICUndisclosed

Physical and lighting

ColourBlack
Platform Sweet SpotAM5
Spec Score4.9

Expert Review

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

Best for

  • Older or budget DDR5 boards with limited high-speed memory validation
  • Buyers who want 64GB without touching XMP/EXPO settings

Not for

  • Gaming or bandwidth-sensitive workloads — a 6000MT/s 64GB kit is a better pick
  • Buyers chasing the best possible latency at this capacity

FAQs

What are the key specifications of the Corsair CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit?

The Corsair CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit is a memory kit from Corsair. Key specs: DDR Generation DDR5, Capacity 64GB (2x32GB), Speed 4800MT/s, CAS Latency 40, Module Count 2.

Will the Corsair CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit work with my current setup?

The Corsair CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit 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 CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit best suited to?

It suits older or budget ddr5 boards with limited high-speed memory validation, buyers who want 64gb without touching xmp/expo settings.

What are the drawbacks of the Corsair CMK64GX5M2A4800C40 64GB (2x32GB) DDR5 Desktop RAM Kit?

It is a poor fit for gaming or bandwidth-sensitive workloads — a 6000mt/s 64gb kit is a better pick, buyers chasing the best possible latency at this capacity.

Compare and read more