Samsung
Samsung 870 EVO 4TB SATA
Who this is for: anyone who needs 4TB of SSD storage for reviving an older laptop or desktop that still boots from a mechanical drive — it is about bulk capacity on a mature, universally compatible interface.
The Samsung 870 EVO 4TB SATA is a 4TB SSD drive rated at up to 560MB/s sequential read, built on 3D TLC flash.
3D TLC determines how it behaves once the SLC write cache is exhausted: sustained writes stay far more consistent, which matters for video ingest and large game installs. Samsung builds its own silicon end to end, which shows up in consistency rather than headline numbers. Any SATA port will run it at full speed, making it an easy drop-in upgrade.
Technical Specs
High-Capacity Storage
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Frequently Asked Questions
What speeds should I expect from the Samsung 870 EVO 4TB SATA?
The rated 560MB/s figure is sequential read on an uncontested SATA link. Random 4K performance, which is what actually determines how snappy a system feels, is a separate figure and is far less dependent on the headline number.
What is 3D TLC flash and why does it matter?
3D TLC describes how many bits each memory cell stores and how the layers are stacked. TLC stores three bits per cell, which keeps sustained write speed and endurance in a healthy place for daily use.
Does the 4TB Samsung drive need a heatsink?
No. SATA drives run cool and fit any standard 2.5 inch bay or bracket.
Is it a good fit for a laptop or older desktop?
Yes. A 2.5 inch SATA SSD is the safest possible upgrade for an older machine still running a mechanical hard drive.
Want the background behind these specs? Read our memory guides.