Buying Guide

The Best External SSDs

Five external SSDs compared by interface, rated read speed and durability, so you can match a drive to the ports your computer has.

By , PC Hardware Editor

12 min read5 products evaluated

A desk setup with a keyboard, mouse and headset beside a monitor
Illustrative image

An external SSD's rated speed depends on the port it plugs into. A 10Gbps USB port tops out around 1,050MB/s, a 20Gbps Gen 2x2 port around 2,000MB/s, and only USB4 or Thunderbolt reaches the 4,000MB/s class.

We researched five portable SSDs across those three tiers using their Amazon listings and prices at the time of writing. We did not test them; speeds are manufacturer maximums.

Quick Picks

Which of the 5 picks to look at first. Tap a name for the full analysis.

  1. Best All-Round

    Crucial X10 Pro Portable SSD 2TB

    2,100MB/s reads, 2,000MB/s writes, IP55 and password protection.

    Best for: Creators who move large files daily

    Check price for Crucial X10 Pro Portable SSD 2TB on Amazon (opens in a new tab)
  2. Best for Long Transfers

    Samsung T9 Portable SSD 2TB

    Sustained 2,000MB/s with Dynamic Thermal Guard.

    Best for: Video projects on a 20Gbps port

    Check price for Samsung T9 Portable SSD 2TB on Amazon (opens in a new tab)
  3. Fastest Listed Speeds

    LaCie Rugged SSD4 1TB

    4,000MB/s reads over USB 40Gbps.

    Best for: USB4 and Thunderbolt computers

    Check price for LaCie Rugged SSD4 1TB on Amazon (opens in a new tab)
  4. Best Rugged 10Gbps

    Samsung T7 Shield Portable SSD 2TB

    IP65 with 9.8ft drop protection.

    Best for: Travel and fieldwork

    Check price for Samsung T7 Shield Portable SSD 2TB on Amazon (opens in a new tab)
  5. Lowest Price Here

    Seagate One Touch SSD 2TB

    2TB at the lowest price here.

    Best for: Everyday laptop storage

    Check price for Seagate One Touch SSD 2TB on Amazon (opens in a new tab)

Our Picks

Best All-Round1 of 5

Crucial X10 Pro Portable SSD 2TB

Crucial's X10 Pro offers 2,100MB/s reads and 2,000MB/s writes, so large exports copy back nearly as fast as they read.

Best for

Creators who move large files daily

Skip if

If budget leads, the One Touch SSD 2TB was cheaper at our last price check.
Crucial X10 Pro Portable SSD 2TB

Why we like it

It adds IP55 water and dust resistance, a 7.5ft drop rating and password protection built into the drive. It reads at up to 2,100MB/s and is rated IP55 with 7.5-foot drop resistance. Full speed needs a 20Gbps USB port.

On capacity it ties with the T9 2TB, the T7 Shield 2TB and the One Touch SSD 2TB at 2TB. On rated read speed it sits mid-pack at 2,100MB/s: the Rugged SSD4 offers 4,000MB/s, and the One Touch SSD 2TB comes in at 1,030MB/s. You get an SSD password protection security here, which sets it apart from the Rugged SSD4 and its a none stated security. You also get a lanyard loop and activity light and three months of Mylio Photos+ and Acronis True Image.

Key specs

Drive type
SSD
Capacity (as reviewed)
2TB
Max read speed
2,100MB/s
Connection
USB 3.2 (USB-C, USB-A supported)
Durability claim
IP55, drops up to 7.5ft
Security
SSD password protection

Pros

  • rated reads up to 2,100MB/s
  • 2,000MB/s rated writes
  • Lanyard loop and activity light
  • Three months of Mylio Photos+ and Acronis True Image

Cons

  • Costs more than the One Touch SSD 2TB at the time of writing

Best for Long Transfers2 of 5

Samsung T9 Portable SSD 2TB

Samsung's T9 lists sustained read and write speeds up to 2,000MB/s, and Samsung's Dynamic Thermal Guard is meant to hold that pace through long copies.

Best for

Video projects on a 20Gbps port

Skip if

Price-first buyers should look at the One Touch SSD 2TB, which cost less when we checked.
Samsung T9 Portable SSD 2TB

Why we like it

Magician software handles firmware updates, health monitoring and optional encryption. On capacity it ties with the X10 Pro 2TB, the T7 Shield 2TB and the One Touch SSD 2TB at 2TB. On rated read speed it sits mid-pack at 2,000MB/s: the Rugged SSD4 offers 4,000MB/s, and the One Touch SSD 2TB comes in at 1,030MB/s.

It is the only pick here with a USB 3.2 Gen 2x2 connection; the T7 Shield 2TB has a USB 3.2 Gen 2 connection instead. It also offers support for iPhone 15 Pro ProRes 4K60 recording. Its top speed needs a USB 3.2 Gen 2x2 (20Gbps) port; most laptops and all Macs run it at 10Gbps speeds instead. It was priced above the X10 Pro 2TB and below the Rugged SSD4 at the time of writing.

Key specs

Drive type
SSD
Capacity (as reviewed)
2TB
Max read speed
2,000MB/s
Connection
USB 3.2 Gen 2x2
Durability claim
Not stated
Security
Encryption via Magician software

Pros

  • rated reads up to 2,000MB/s
  • Sustained read and write speeds up to 2,000MB/s
  • Dynamic Thermal Guard heat solution for long transfers
  • Support for iPhone 15 Pro ProRes 4K60 recording

Cons

  • Costs more than the One Touch SSD 2TB at the time of writing

Fastest Listed Speeds3 of 5

LaCie Rugged SSD4 1TB

LaCie's Rugged SSD4 uses a 40Gbps USB connection and offers 4,000MB/s reads and 3,800MB/s writes, the fastest figures here.

Best for

USB4 and Thunderbolt computers

Skip if

Skip it if capacity matters most to you; the X10 Pro 2TB offers 2TB.
LaCie Rugged SSD4 1TB

Why we like it

It is the only 1TB drive in this guide, and it needs a USB4 or Thunderbolt port to reach those speeds. It reads at up to 4,000MB/s over USB 40Gbps and Thunderbolt, and it is IP54-rated with 3-metre drop and 1-ton crush resistance. It suits fieldwork with large video files.

Its 1TB capacity is the smallest in this group; the X10 Pro 2TB leads at 2TB. Nothing else here matches its 4,000MB/s rated read speed; the X10 Pro 2TB comes closest at 2,100MB/s. Like the T7 Shield 2TB and One Touch SSD 2TB, it has a none stated security, while the X10 Pro 2TB uses an SSD password protection security.

It also comes with compatibility with Thunderbolt 3, 4 and 5 as well as 5-20Gbps USB and a three-year warranty with Rescue data recovery. Its price falls between the T9 2TB and the T7 Shield 2TB, based on our last check.

Key specs

Drive type
SSD
Capacity (as reviewed)
1TB
Max read speed
4,000MB/s
Connection
USB 40Gbps (Thunderbolt 3, 4 and 5 compatible)
Durability claim
IP54, drops up to 3m, 1-ton pressure
Security
None stated

Pros

  • rated reads up to 4,000MB/s
  • 3,800MB/s rated writes
  • Compatibility with Thunderbolt 3, 4 and 5 as well as 5-20Gbps USB
  • Three-year warranty with Rescue data recovery

Cons

  • Capacity trails the X10 Pro 2TB (2TB)
  • Costs more than the One Touch SSD 2TB at the time of writing

The catch

If capacity is your priority, the X10 Pro 2TB (2TB) is the stronger choice.

Best Rugged 10Gbps4 of 5

Samsung T7 Shield Portable SSD 2TB

Samsung's T7 Shield runs at 10Gbps USB speeds, rated to 1,050MB/s reads, a speed that many laptop USB-C ports support.

Best for

Travel and fieldwork

Skip if

If budget leads, the One Touch SSD 2TB was cheaper at our last price check.
Samsung T7 Shield Portable SSD 2TB

Why we like it

Its IP65 rating and 9.8ft drop protection suit a drive that lives in a camera bag. It uses an internal PCIe NVMe drive for reads up to 1,050MB/s and writes up to 1,000MB/s over USB 3.2 Gen 2. The rubber shell adds water, dust and drop resistance.

It matches the X10 Pro 2TB, the T9 2TB and the One Touch SSD 2TB on capacity (2TB). Its 1,050MB/s rated read speed ranks fourth of 5 here, behind the Rugged SSD4 (4,000MB/s) and ahead of the One Touch SSD 2TB (1,030MB/s). You get a USB 3.2 Gen 2 connection here, which sets it apart from the One Touch SSD 2TB and its a USB 3 (as listed) connection. It was the highest-priced of the 5 picks at the time of writing, so the case for it rests on what it adds over the Rugged SSD4 and the rest.

Key specs

Drive type
SSD
Capacity (as reviewed)
2TB
Max read speed
1,050MB/s
Connection
USB 3.2 Gen 2
Durability claim
IP65, drops up to 9.8ft
Security
None stated

Pros

  • IP65 water and dust rating
  • Drop protection up to 9.8ft
  • Magician software for drive health and firmware updates
  • Capacity of 2TB, ahead of the Rugged SSD4

Cons

  • Costs more than the One Touch SSD 2TB at the time of writing

Lowest Price Here5 of 5

Seagate One Touch SSD 2TB

Seagate's One Touch SSD wraps a 2TB drive rated to 1,030MB/s in a light textile cover.

Best for

Everyday laptop storage

Skip if

Skip it if rated read speed matters most to you; the Rugged SSD4 offers 4,000MB/s.
Seagate One Touch SSD 2TB

Why we like it

It was the lowest-priced drive here at the time of writing and carries a three-year warranty with Rescue data recovery. On capacity it ties with the X10 Pro 2TB, the T9 2TB and the T7 Shield 2TB at 2TB. On rated read speed it trails the group at 1,030MB/s, while the Rugged SSD4 offers 4,000MB/s.

No other pick in this guide offers a USB 3 (as listed) connection; compare the T9 2TB, which has a USB 3.2 Gen 2x2 connection. It shares a none stated security with the Rugged SSD4 and T7 Shield 2TB; the X10 Pro 2TB goes with an SSD password protection security. It also offers a lightweight textile-covered design and a six-month Mylio Photos+ subscription and a Dropbox Backup trial. No other pick here cost less at our last price check, and the X10 Pro 2TB was closest.

Key specs

Drive type
SSD
Capacity (as reviewed)
2TB
Max read speed
1,030MB/s
Connection
USB 3 (as listed)
Durability claim
Not stated
Security
None stated

Pros

  • Lightweight textile-covered design
  • Three-year warranty with Rescue data recovery
  • Six-month Mylio Photos+ subscription and a Dropbox Backup trial
  • Capacity of 2TB, ahead of the Rugged SSD4

Cons

  • Rated read speed trails the Rugged SSD4 (4,000MB/s)

The catch

Rated read speed is its weakest area, and the Rugged SSD4 covers it better at 4,000MB/s.

How We Chose These External SSDs

Alex Morgan compared the manufacturer specifications, connectivity, warranty terms and compatibility of every pick. Figures come from the makers unless a third-party source is named; we did not test these products ourselves.

An M.2 SSD inside a clear external enclosure
An M.2 SSD inside a clear external enclosure
How these picks were ranked
We set side by side five drives on drive type, capacity, rated read speed and connection as the makers state them. Nothing was tested in-house; 5 of the 6 fields compared are stated for every pick, while durability claim has gaps.
The shared baseline
All 5, from the X10 Pro 2TB to the One Touch SSD 2TB, state drive type, capacity and rated read speed.
Where the specs have gaps
The T9 2TB and the One Touch SSD 2TB give no durability claim.
Price range
From the One Touch SSD 2TB to the T7 Shield 2TB, all sat in the $250 to $500 tier when we checked.

What to Look for in an External SSD

Key buying criteria so you get the right fit the first time.

  1. How much capacity you need

    Across these 5 picks capacity spans 1TB (the Rugged SSD4) to 2TB (the X10 Pro 2TB). Start with the X10 Pro 2TB if capacity decides it.

  2. Rated read speed across these picks

    Here rated read speed runs from 1,030MB/s on the One Touch SSD 2TB to 4,000MB/s on the Rugged SSD4, a 288% spread. The X10 Pro 2TB comes second at 2,100MB/s, in the same price tier as the Rugged SSD4.

    A small M.2 SSD next to an external drive enclosure
    A small M.2 SSD next to an external drive enclosure
  3. Features beyond the spec table

    The Rugged SSD4: compatibility with Thunderbolt 3, 4 and 5 as well as 5-20Gbps USB. The T7 Shield 2TB: drop protection up to 9.8ft. The One Touch SSD 2TB: a three-year warranty with Rescue data recovery.

  4. How much to spend

    Price does little to separate these 5: the One Touch SSD 2TB through the T7 Shield 2TB all landed in the $250 to $500 tier, which leaves capacity to decide it.

    An M.2 2280 SSD held in a hand
    An M.2 2280 SSD held in a hand
  5. Match the pick to your priority

    Creators who move large files daily: the X10 Pro 2TB. Video projects on a 20Gbps port: the T9 2TB. USB4 and Thunderbolt computers: the Rugged SSD4.

How to Choose an External SSD

By priority

PriorityConsiderWhy
Creators who move large files dailyX10 Pro 2TB2,100MB/s reads, 2,000MB/s writes, IP55 and password protection
Video projects on a 20Gbps portT9 2TBSustained 2,000MB/s with Dynamic Thermal Guard
USB4 and Thunderbolt computersRugged SSD44,000MB/s reads over USB 40Gbps
Travel and fieldworkT7 Shield 2TBIP65 with 9.8ft drop protection
Everyday laptop storageOne Touch SSD 2TB2TB at the lowest price here

Scroll sideways to see every column.

Key specs side by side

The X10 Pro 2TB leads on capacity at 2TB, ahead of the T9 2TB at 2TB.

DriveDrive typeCapacity (as reviewed)Max read speedConnection
X10 Pro 2TBSSD2TB2,100MB/sUSB 3.2 (USB-C, USB-A supported)
T9 2TBSSD2TB2,000MB/sUSB 3.2 Gen 2x2
Rugged SSD4SSD1TB4,000MB/sUSB 40Gbps (Thunderbolt 3, 4 and 5 compatible)
T7 Shield 2TBSSD2TB1,050MB/sUSB 3.2 Gen 2
One Touch SSD 2TBSSD2TB1,030MB/sUSB 3 (as listed)

Scroll sideways to see every column.

Frequently Asked Questions

Is the Rugged SSD4 ahead of the X10 Pro 2TB on rated read speed?

The Rugged SSD4 leads at 4,000MB/s, with the X10 Pro 2TB at 2,100MB/s. The One Touch SSD 2TB is at the other end of this group with 1,030MB/s.

Is the T7 Shield 2TB worth paying more than the One Touch SSD 2TB?

The spec sheets show rated read speed (1,050MB/s against 1,030MB/s) in its favour. Both sat in the $250 to $500 tier when we checked, so the gains in rated read speed cost little extra by tier.

What makes the X10 Pro 2TB the Best All-Round?

The label rests on 2,100MB/s reads, 2,000MB/s writes, IP55 and password protection. It suits anyone who moves large files daily.

Beyond the specs, what sets the X10 Pro 2TB and the T9 2TB apart?

The X10 Pro 2TB: 2,000MB/s rated writes. The T9 2TB: sustained read and write speeds up to 2,000MB/s. The Rugged SSD4: 3,800MB/s rated writes.

Who should choose the T9 2TB?

The T9 2TB carries our Best for Long Transfers label for sustained 2,000MB/s with Dynamic Thermal Guard. It ranks second of 5 here and sat in the $250 to $500 tier at our last price check; it suits video projects on a 20Gbps port.

Bottom Line

The Crucial X10 Pro is the all-round pick, pairing 2,100MB/s reads with IP55 protection and password security. The Samsung T9 suits long transfers on a 20Gbps port, and the LaCie Rugged SSD4 is the choice for USB4 and Thunderbolt computers.

On a 10Gbps laptop, the Samsung T7 Shield adds IP65 and 9.8ft drop protection, while the Seagate One Touch SSD gives 2TB at the lowest price here.

About the author

PC Hardware Editor

Alex covers PC hardware, monitors, components, upgrades and peripherals for The PC Journal, with a focus on helping readers understand specifications, compatibility and meaningful product trade-offs.

Covers: Monitors, Graphics cards, Processors, PC components, Peripherals, Upgrades and compatibility

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