Joybuy Insights

Buying a 4TB SSD: how to choose the right storage for your PC, gaming or PS5

Buying a 4TB SSD may seem straightforward: choose a capacity, compare read speeds and install the drive in your PC. In practice, problems often arise because of the wrong connection, inadequate cooling or a product that won’t fit in your laptop or console. A fast 4TB SSD only offers an advantage if your system can make use of its speed.

For gamers, video editors, content creators and IT users, there are three main pitfalls to watch out for:

  • High speed without the right connection: a PCIe 5.0 SSD won’t automatically run at PCIe 5.0 speeds in a PCIe 4.0 slot.
  • Overlooking cooling: extended file transfers and demanding games can make an M.2 SSD hot. Some models need a heatsink or a motherboard with its own heat spreader.
  • The wrong form factor: a 4TB M.2 SSD is not the same as a 4TB 2.5-inch SATA SSD. Always check the available space and connector.

Which specifications should you check?

1. Connection and protocol

A 4TB NVMe SSD usually uses the M.2 2280 form factor and connects via PCIe. The generation partly determines the maximum transfer speed:

  • PCIe 4.0 SSD: suitable for many modern desktops, laptops and the PS5. According to the product specifications, models such as the Samsung 990 PRO 4TB offer read speeds of up to 7.450 MB/s and write speeds of up to 6.900 MB/s.
  • PCIe 5.0 SSD: designed for newer motherboards with a PCIe 5.0 M.2 slot. The Samsung 9100 PRO 4TB lists read speeds of up to 14.800 MB/s and write speeds of up to 13.400 MB/s.
  • 4TB SATA SSD: uses the older 2.5-inch SATA connection. The Samsung 870 EVO 4TB lists read speeds of up to 560 MB/s and write speeds of up to 530 MB/s.

A PCIe 5.0 model can offer benefits in a compatible system when working with large video files, virtual machines and other lengthy transfers. For everyday gaming, the difference compared with a good PCIe 4.0 SSD won’t always be noticeable.

2. Cooling and compatibility

When choosing an internal 4TB SSD, check:

  1. Whether your motherboard or laptop has a spare M.2 2280 slot.
  2. Whether that slot supports NVMe and the PCIe generation you want.
  3. Whether a heatsink is included.
  4. Whether the SSD will physically fit with the heatsink attached.

A PS5 SSD has additional requirements for size and cooling. A compatible M.2 model must be secured correctly and will generally need a suitable heatsink. The Samsung 990 PRO with heatsink and the Lexar NM790 4TB are listed as PS5-compatible in their product information. Also check Sony’s current requirements and the available space in your console.

3. Write speed, NAND and workload

Read speed matters when starting games and opening projects. Write speed is especially important for video editing, backups and moving large files. Also consider:

  • TLC or QLC NAND: TLC models are often designed for heavier use; QLC can be a good option when capacity and price matter more.
  • TBW: this indicates the amount of data that can be written to the SSD according to its product specifications. It isn’t an exact prediction of the drive’s lifespan.
  • Warranty: check the statutory warranty and any additional manufacturer’s warranty terms.
  • Software and firmware: some brands provide management software for monitoring temperature and drive health, as well as installing updates.

An external 4TB SSD is more practical if you want to take files between several devices. The Samsung T9 4TB lists USB 3.2 Gen 2x2 and transfer speeds of up to 2.000 MB/s. Check that your computer supports USB 3.2 Gen 2x2, though; otherwise, speeds will be lower.

Recommended 4TB SSDs for different users

Suitable for: Beginners on a budget
Kingston Technology 4TB NV3 M.2 2280 NVMe SSD

Kingston Technology 4TB NV3 M.2 2280 NVMe SSD

Why it suits this profile: This M.2 model combines 4TB of storage with PCIe 4.0 and is designed for PCs and laptops. It’s a practical choice if you need plenty of space without stepping down to a SATA drive.

How this product avoids the pitfalls

The product information clearly states the M.2 2280 form factor, PCIe 4.0 and NVMe. Before buying, check that your device supports this slot.

Key benefit and features

4TB capacity, with read speeds of up to 6.000 MB/s and write speeds of up to 5.000 MB/s according to the product details.

Suitable for: Buyers looking for top quality
Samsung 990 PRO NVMe 4TB SSD

Samsung 990 PRO NVMe 4TB SSD

Why it suits this profile: This internal PCIe 4.0 SSD is designed for users who want to store large projects, games and applications on a single fast drive.

How this product avoids the pitfalls

The version without a heatsink leaves room for your motherboard’s cooling solution; choose the heatsink version if your system requires one.

Key benefit and features

Read speeds of up to 7.450 MB/s, write speeds of up to 6.900 MB/s and 2.400 TBW according to the listed specifications.

Suitable for: Specialist use and demanding users
Samsung 9100 PRO PCIe 5.0 NVMe M.2 SSD 4TB

Samsung 9100 PRO PCIe 5.0 NVMe M.2 SSD - 4TB

Why it suits this profile: This model is designed for systems with a PCIe 5.0 slot and users who regularly work with large files, such as 4K or 8K video projects.

How this product avoids the pitfalls

The PCIe 5.0 connection is clearly stated, so you can check in advance whether your motherboard supports the required interface and cooling.

Key benefit and features

Read speeds of up to 14.800 MB/s and write speeds of up to 13.400 MB/s; check heat dissipation during extended use.

Looking for more options?

We’ve put together a complete, up-to-date list of products that meet these strict selection criteria and the applicable European safety regulations.

Frequently asked questions about buying a 4TB SSD

Is 4TB of storage enough for gaming and video editing?

For many users, 4TB is enough for a mix of games, photos, video projects and programmes. Video editors with lots of source footage may need a second drive or a NAS. Always leave some capacity free to support system performance and manage your files.

Can any 4TB NVMe SSD be used in a PS5?

No. Check the M.2 form factor, PCIe generation, dimensions and required heatsink. A product listing may state that an SSD is PS5-compatible, but you should also check the console’s official requirements and the physical space available in your model.

What’s the difference between an internal and external 4TB SSD?

An internal SSD is installed directly in a PC, laptop or console and can offer higher transfer speeds via PCIe. An external 4TB SSD connects via USB and is easier to take with you. For both types, the actual speed depends on the device’s connection.