Crucial CT8G48C40U5T.M4A1 8GB
- Capacity:
- 8GB
- Speed:
- 4800MT/s
- CAS Latency:
- CL40
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Manufacturer: Crucial Last updated: 2026-09-14
Crucial CT8G48C40U5T.M4A1 8GB Review
The Crucial CT8G48C40U5T.M4A1 is an 8GB DDR5-4800 desktop module, the "T" tray-pack variant of Crucial's standard CT8G48C40U5 spec.
We'd buy this exactly like Crucial's other CT8G48C40U5 suffix variants, same 8GB/4800MT/s/CL40 spec, this one's just packaged for tray/bulk distribution rather than individual retail.
Performance
4800MT/s CL40 is DDR5's un-tuned baseline, true latency around 16.7ns with no XMP profile, identical performance to Crucial's other CT8G48C40U5 part numbers.
Comparison to Alternatives
Functionally the same as Crucial's CT8G48C40U5.M4A1 and CT8G48C40U5.C4A1 already in this catalog. Step up to Crucial's CT8G56C46U5 line for a faster 5600MT/s bin at the same 8GB capacity.
Specifications
Identity
| Brand | Crucial |
|---|---|
| Part Number | CT8G48C40U5T.M4A1 |
| Series | Crucial RAM |
Memory
| DDR Generation | DDR5 |
|---|---|
| Capacity | 8 GB |
| Speed | 4800 MT/s |
| CAS Latency | 40 |
| Module Count | 1 |
| Voltage | 1.1 V |
Physical
| Form Factor | Desktop DIMM |
|---|---|
| RGB Lighting | No |
Module and platform
| RAM Segment | Desktop DDR5 |
|---|
Capacity
| Capacity Per Module | 8 GB |
|---|
Speed and timings
| True Latency | 16.7 ns |
|---|
Silicon
| Memory IC | Micron |
|---|---|
| ECC | No |
Physical and lighting
| Colour | Green PCB |
|---|
Commercial
| Warranty | Limited Lifetime |
|---|
| Model Number | CT8G48C40U5T.M4A1 |
|---|---|
| OC Profile | JEDEC Standard (No XMP) |
| Spec Score | 3.2 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Adding a second 8GB stick to an existing single-module PC
- System integrators buying tray-packed bulk modules
Not for
- New gaming or content-creation builds (too little capacity)
- Buyers wanting XMP-tuned speeds
FAQs
What are the key specifications of the Crucial CT8G48C40U5T.M4A1 8GB?
The Crucial CT8G48C40U5T.M4A1 8GB is a memory kit from Crucial. Key specs: DDR Generation DDR5, Capacity 8GB, Speed 4800MT/s, CAS Latency 40, Module Count 1.
Will the Crucial CT8G48C40U5T.M4A1 8GB work with my current setup?
The Crucial CT8G48C40U5T.M4A1 8GB 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 Crucial CT8G48C40U5T.M4A1 8GB best suited to?
It suits adding a second 8gb stick to an existing single-module pc, system integrators buying tray-packed bulk modules.
What are the drawbacks of the Crucial CT8G48C40U5T.M4A1 8GB?
It is a poor fit for new gaming or content-creation builds (too little capacity), buyers wanting xmp-tuned speeds.