Joybuy Insights

Buying an external SSD: key criteria and models for every need

An external SSD can make your photos, videos, backups and games much more portable. But a high speed rating doesn’t automatically mean it’s the best buy. What matters is whether the drive, connection and device are compatible.

Common pitfalls when buying an external SSD

1. Maximum speed without a compatible connection

Figures such as 2,000 or 2,060 MB/s usually refer to ideal conditions. You’ll generally need a compatible USB 3.2 Gen 2x2 port and a suitable cable to achieve them. With a slower USB port, the drive will work at a correspondingly lower speed.

A USB-C socket alone tells you little about the actual transfer rate. USB-C describes the connector shape; you’ll also need to check the transfer protocol supported by your computer, smartphone or tablet.

2. Confusing an SSD with an external hard drive

An SSD has no moving parts, making it compact and less susceptible to knocks while in use. A traditional external hard drive with magnetic platters, on the other hand, often offers more storage per pound, but is more vulnerable to mechanical damage and usually slower.

A portable SSD is often a good choice for frequent file transfers, working on the move and video editing. For large archives, backups you rarely need to access or several terabytes of storage, a 4TB, 5TB or 6TB external hard drive may offer better value.

3. Mistaking durability for data security

An aluminium casing, an IP65 rating or a stated drop height won’t protect a drive from every kind of damage. And a sturdy case is no substitute for a backup. Important files should be stored in at least two separate places.

For confidential documents, look for AES hardware encryption, password protection and the software required to use them. Encryption often needs to be set up first and isn’t always enabled by default.

The key technical criteria

Connection and real-world speed

For many uses, USB 3.2 Gen 2, with speeds of up to 10 Gbit/s, offers a good balance. According to product specifications, external SSDs such as the Samsung T7 can reach read speeds of up to 1,050 MB/s and write speeds of up to 1,000 MB/s. That’s fast enough for backups, photos, office files and many video projects.

A fast external SSD with USB 3.2 Gen 2x2 can reach speeds of up to 2,000 MB/s or more, according to the manufacturer. However, you’ll only benefit if your device also supports this standard. Older PCs may require a USB-C to USB-A cable. Cables included in the box reduce the risk of an incompatible connection.

Choose a capacity to suit your data

  • 1TB SSD: suitable for documents, photos, music, smaller video projects and a portable work library.
  • 2TB SSD: a good choice for large photo and video collections, games or regular backups.
  • 4TB to 6TB: generally worth considering for archives and large amounts of data, often in the form of a traditional hard drive.
  • Several smaller drives: can be more practical than one large drive for keeping work and backup copies separate.

Bear in mind that your operating system will show a slightly lower usable capacity than the manufacturer’s stated figure.

Compatibility with Mac, PC, iPhone and games consoles

An SSD for Mac and PC should be formatted with a suitable file system. exFAT is often a good choice for transferring files between Windows and macOS. Depending on your system, an NTFS-formatted drive usually can’t be fully written to on macOS without additional software.

For an SSD for iPhone, you’ll need a compatible iPhone model with a USB-C port and a suitable cable. With magnetic models, also check that the mount is compatible with your phone or case. An external SSD for PS5 can be useful for storing and transferring game data, but the console determines which games can be played directly from external storage.

Our picks for different needs

Ideal for: Budget-conscious beginners
WD 2TB Elements portable external hard drive

WD 2TB Elements portable external hard drive

Why it suits this profile: This 2TB hard drive gives you plenty of space for photos, documents and backups, without paying the higher price per terabyte of an SSD.

How this product avoids the pitfall

The USB 3.0 interface is clearly specified, making it easier to set realistic expectations than broad claims about high speeds.

Key benefits and strengths

2TB capacity, USB-powered and compatible with USB 3.0 and USB 2.0.

Ideal for: Buyers who expect premium quality
Samsung Portable Solid State Drive T7 2TB

Samsung Portable Solid State Drive T7 2TB USB Type-C 3.2 Gen 2

Why it suits this profile: This compact 2TB SSD is a good fit for professionals, students and photographers who need fast transfers in a portable design.

How this product avoids the pitfall

The USB 3.2 Gen 2 interface is clearly specified, and the included USB-C to USB-C and USB-C to USB-A cables make it easier to check compatibility.

Key benefits and strengths

Read speeds of up to 1,050 MB/s, an aluminium casing, drop resistance from heights of up to two metres and optional hardware encryption.

Ideal for: Specialist uses and heavy users
Lexar ES5 Portable SSD 1TB

Lexar ES5 Portable SSD 1TB

Why it suits this profile: Content creators and mobile videographers get a magnetic mounting option for compatible devices, along with fast file transfers.

How this product avoids the pitfall

The IP65 rating comes with a clear note that the drive isn’t designed to be submerged. It’s also worth bearing in mind that performance will be lower with incompatible ports.

Key benefits and strengths

Read and write speeds of up to 2,000 MB/s, IP65 protection, a stated drop height of up to three metres and a MagSafe-compatible mount.

Ideal for: Large archives and backups
WD Elements Portable 6TB USB-C

WD Elements Portable 6TB USB-C

Why it suits this profile: For large photo archives, video collections and local backups, high capacity matters more than maximum SSD speed.

How this product avoids the pitfall

This product is listed as an external hard drive with USB 3.2 Gen 1. You can weigh its lower speed compared with an SSD against its higher capacity.

Key benefits and strengths

6TB of storage, a USB-C connection, a compact 2.5-inch design and support for Windows and Mac, according to the product specifications.

Looking for more options?

We’ve put together a complete, regularly updated list of products that meet these strict selection criteria and fully comply with the safety regulations in force in the EU.

Practical tips before you order

  • Check your device’s ports and use a cable that supports the right transfer speed.
  • Only format the drive once you’ve checked whether you’ll be sharing it between Windows, macOS, Android or iOS.
  • If you’re planning to use an SSD with a PS5 or camera, check the device’s compatibility requirements and capacity limits.
  • Enable password protection or AES encryption before storing confidential data.
  • Safely eject the drive through your operating system before unplugging it.
  • Keep an additional copy of important data on a second storage device.

External SSD FAQs

How long does an external SSD last?

Its lifespan depends on the amount of data written, temperature, usage and model. There’s no single lifespan that applies to every drive. You’ll still need an additional backup for important data, whether you use an SSD or an external hard drive.

Is an external SSD suitable for backups?

Yes. An external SSD is particularly useful for regular backups when fast transfers and low weight matter. For very large archives that you rarely access, an external hard drive with 4TB to 6TB of storage may offer better value thanks to its higher capacity.

How much does it cost to run an external SSD?

A portable SSD usually doesn’t need its own power socket and draws power through USB. As a result, running costs are low in everyday use. If you leave a drive connected for long periods, it’s still worth keeping an eye on heat build-up and ventilation, and disconnecting it safely after use.