Corsair Vengeance RGB CMH128GX5M4B5600C40
Expert rating8 / 10
- DDR Generation:
- DDR5
- Capacity:
- 128GB
- Speed:
- 5600MT/s
- CAS Latency:
- CL40
- Module Count:
- 4
- Colour:
- Black
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Manufacturer: Corsair Last updated: 2026-09-12
Where to buy
- Corsair StoreGo to store
Corsair Vengeance RGB CMH128GX5M4B5600C40 Review
Corsair Vengeance RGB CMH128GX5M4B5600C40 is a 128GB (4x32GB) DDR5-5600 CL40 quad-kit with RGB lighting, black anodized aluminum heat spreader, Intel XMP 3.0.
For the rare build that wants both a full 128GB of workstation-grade capacity and a fully lit-up RGB aesthetic across all four DIMM slots, this kit brings Vengeance RGB's light bar to the same factory-matched quad-channel configuration as the plain Vengeance 128GB kit. It's a niche but real audience: streamers running heavy production suites who still want their rig to look the part.
Why Buy It
This is one of the few 128GB DDR5 quad-kits sold with RGB lighting at all, aimed at streamers and creators who want workstation-class capacity without giving up a fully lit build.
Speed and Latency
Speed and CL only mean something together: 40 cycles at 5600MT/s is 14.3ns of real delay. 89% of the desktop DDR5 kits we list are as tight or tighter, so this is on the looser side of its class.
Our verdict
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8 / 10
A rare RGB-lit 128GB DDR5 quad-kit for creators who want maximum capacity and a fully lit build.
Best for
- Streamers and creators wanting 128GB with RGB lighting
- Four-DIMM-slot boards needing maximum capacity and lighting
- Show builds doubling as heavy production workstations
Not for
- Anyone who doesn't need more than 32-64GB
- No-RGB preferences
- Two-slot ITX boards
Specifications
What these specs meanHow fast this kit is among DDR5 kits, rated from its speed and latency.
Identity
| Peak Bandwidth | 89.6 GB/s |
|---|---|
| Brand | Corsair |
| Part Number | CMH128GX5M4B5600C40 |
| Series | Vengeance RGB |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 128 GB |
| Speed | 5600 MT/s |
| CAS Latency | 40 |
| Module Count | 4 |
| Voltage | 1.25 V |
Physical
| RGB Lighting | Yes |
|---|
Module and platform
| RAM Segment | Desktop DDR5 |
|---|---|
| Form Factor | Standard DIMM |
| Platform Optimisation | AM5 |
Capacity
| Capacity Per Module | 32 GB |
|---|
Speed and timings
| True Latency | 14.3 ns |
|---|
Overclocking profile
| XMP Support | Yes |
|---|---|
| XMP Version | XMP 3.0 |
| EXPO Support | No |
Silicon
| Memory IC | Undisclosed |
|---|---|
| ECC | No |
Physical and lighting
| Colour | Black |
|---|
Commercial
| Warranty | Limited Lifetime |
|---|
FAQs
What are the key specifications of the Corsair Vengeance RGB CMH128GX5M4B5600C40 (128GB 4x32GB Kit/DDR5 5600MHz/CL40/1.25V/RGB Anodized Aluminum/Intel XMP 3.0)?
Key specs for the Corsair Vengeance RGB CMH128GX5M4B5600C40: Capacity Per Module 32 GB, Capacity 128 GB, Speed 5600 MHz, OC Profile XMP 3.0, Voltage 1.25 V, DDR Generation DDR5.
Will the Corsair Vengeance RGB CMH128GX5M4B5600C40 (128GB 4x32GB Kit/DDR5 5600MHz/CL40/1.25V/RGB Anodized Aluminum/Intel XMP 3.0) work with my current setup?
The Corsair Vengeance RGB CMH128GX5M4B5600C40 (128GB 4x32GB Kit/DDR5 5600MHz/CL40/1.25V/RGB Anodized Aluminum/Intel XMP 3.0) 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 Vengeance RGB CMH128GX5M4B5600C40 (128GB 4x32GB Kit/DDR5 5600MHz/CL40/1.25V/RGB Anodized Aluminum/Intel XMP 3.0) best suited to?
Best suited to: Streamers and creators wanting 128GB with RGB lighting; Four-DIMM-slot boards needing maximum capacity and lighting; Show builds doubling as heavy production workstations.
What are the drawbacks of the Corsair Vengeance RGB CMH128GX5M4B5600C40 (128GB 4x32GB Kit/DDR5 5600MHz/CL40/1.25V/RGB Anodized Aluminum/Intel XMP 3.0)?
Not the best fit for: Anyone who doesn't need more than 32-64GB; No-RGB preferences; Two-slot ITX boards.