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Samsung
Model: MU-PC4T0S
| Capacity | 4TB |
| Interface | USB 3.2 Gen 2 |
| Form Factor | External |
| Read Speed | 1,050 MB/s |
| Write Speed | 1,000 MB/s |
| Endurance (TBW) | 2,400 TB |
| Warranty | 3 Years |
The 4TB T7 is the largest single-drive external storage most people can buy without moving to a wall-powered Thunderbolt desktop enclosure. Perfect for moving a desktop-grade media library between office, home, and field shoots.
See how it stacks up against competitors in our USB-C External SSDs SSD comparison, or browse related SSD buying guides.
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Everyday external storage done right: 4TB capacity, 1.1 GB/s reads, and the reliability you expect from Samsung.
At 1.1 GB/s reads and 1.0 GB/s writes, the Samsung T7 4TB is not trying to set speed records — it is trying to be the drive you reach for every day. And it succeeds: fast enough for backups and file transfers, cheap enough to buy without thinking twice.
4TB of storage provides generous headroom for everyday files. The compact, lightweight design slips into any bag pocket. With 2,400 TBW, this is pro-grade endurance designed for sustained professional workloads. The 3-year warranty provides standard coverage for the expected lifespan of the drive.
At 4TB, this drive hits a sweet spot for photo and video libraries. You can store thousands of RAW images or hours of 4K footage without juggling multiple drives.
SATA-based externals like the Samsung T7 4TB are the sensible choice when NVMe speed is overkill — the 550 MB/s ceiling is plenty for system backups, media playback, and document storage, and the savings are significant.
The Samsung T7 4TB is a solid all-around 4TB portable SSD for everyday use. If you need fast backups, reliable file transport between devices, or external storage for documents, photos, and media, the 1,050 MB/s reads deliver performance that makes daily tasks feel instant compared to an external hard drive.
At 4TB, this drive hits the sweet spot for users with substantial storage needs. Photo and video libraries, game collections, and professional project files all benefit from the headroom — you will not be juggling free space or swapping files between drives.
The USB 3.2 Gen 2 interface means the Samsung T7 4TB hits full speed on virtually any modern USB-C or USB-A port — no special hardware required. Plug it into a laptop, desktop, game console, or tablet and you get the same 1,050 MB/s performance without compatibility concerns.
On paper, the Samsung T7 4TB delivers 1,050 MB/s reads and 1,000 MB/s writes. In practice, a 50GB file — a typical 4K video project, a large game install, or a full photo shoot — transfers in ~50 seconds. A 100GB batch of raw files moves in ~2 minutes. For users who regularly shuttle large files, these transfer times are a meaningful productivity improvement over slower SATA-based externals that take 3-5x longer for the same tasks.
Sequential read and write speeds — the numbers manufacturers advertise — matter most when transferring single large files. For everyday tasks like opening documents, browsing photos, running applications from the drive, or loading games, random 4K performance is more relevant. All NVMe-based external SSDs deliver random IOPS in the same general range, so the $Samsung T7 4TB feels similarly responsive to other fast portables for daily use. The real differentiator shows up during large file transfers, where the $1,050 MB/s read speed pulls noticeably ahead of slower SATA-based externals.
The $Samsung T7 4TB is rated for $2,400 TBW (terabytes written) endurance. To put that in perspective: if you write 50GB per day — an aggressive daily workload for most users — the drive would take approximately $132 years to reach its endurance limit. For typical use patterns involving backups, file transfers, and game storage, the $2,400 TBW rating provides comfortable headroom well beyond the $3-year warranty period.
| Spec | Samsung T7 4TB | Samsung T9 2TB |
|---|---|---|
| Read Speed | 1,050 MB/s | 2,000 MB/s |
| Write Speed | 1,000 MB/s | 2,000 MB/s |
| Capacity | 4TB | 2TB |
| Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 |
| Endurance | 2,400 TBW | 1,200 TBW |
| Score | 9.4/10 | 9.6/10 |
The Samsung T9 2TB scores higher in our evaluation (9.6 vs 9.4/10). It also delivers faster reads (2,000 vs 1,050 MB/s).
For a detailed head-to-head comparison, see our full Samsung T7 4TB vs Samsung T9 2TB comparison.
| Model | Capacity | Interface | Read | Write | TBW |
|---|---|---|---|---|---|
| Samsung T7 4TB | 4TB | USB 3.2 Gen 2 | 1,050 | 1,000 | 2,400 |
| Samsung T9 2TB | 2TB | USB 3.2 Gen 2x2 | 2,000 | 2,000 | 1,200 |
| Samsung T9 Portable SSD | 1TB | USB 3.2 Gen 2x2 | 2,000 | 1,950 | 600 |
| Crucial X10 Pro 2TB | 2TB | USB 3.2 Gen 2x2 | 2,000 | 2,000 | 1,200 |
Specs shown for the closest USB-C External SSDs alternatives. Full comparison table available on the compare page.
The Samsung T7 comes in multiple capacities. Smaller sizes save money if you do not need the headroom; larger sizes drop the cost-per-TB for media libraries and Time Machine backups.
Samsung
Price as of Aug 3, 2026, 6:33 PM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Samsung
Price as of Jul 3, 2026, 4:11 AM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Samsung
Price as of Jul 3, 2026, 5:43 AM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
Samsung
Price as of Aug 3, 2026, 6:33 PM. Prices and availability are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.