Lexar E31 128GB USB 3.2 Gen 1 Flash Drive

The Lexar E31 is a 128 GB USB flash drive with a USB Type-A connection and USB 3.2 Gen 1 interface. Its compact, lightweight metal design and integrated keyring loop suit portable file storage, while the stated speed is a maximum and may vary with the host device.

At a glance

The listing claims transfer speeds up to 100MB/s and backward compatibility with USB 2.0 ports.
USB plug-and-play operation is claimed, with no software installation required.
An integrated keyring loop is intended for attachment to keys or a lanyard.
The all-metal construction is described as compact and lightweight.

Price

£21.24Save 15%

Reference price: ~~£24.99~~

Price checked: 14 Nov 2026

View offer

Pros and cons

Pros

128 GB capacity provides space for everyday files, photos and videos.
USB Type-A and claimed USB 2.0 backward compatibility suit devices with those ports.
The integrated loop makes it easier to carry on a keyring or lanyard.

Technical specifications

11 specifications

Identity
Brand	Lexar
Model	E31

Connection and performance
Interface	USB 3.2 Gen 1
Connector	USB Type A
Claimed read speed	100 Megabytes Per Second
Connectivity technology	USB

Storage
Storage listed	128 GB

Physical details
Listed features	Compact, Lightweight
Weight listed	4.93 Grams

Compatibility and support
Compatible devices	PCs, laptops, TVs, car stereos and other USB enabled devices
Warranty listed	Two-year limited warranty

What to know before buying

The stated 100MB/s is an up-to figure based on internal testing, and actual speed may vary with the host device. Usable capacity may be lower after formatting and other functions. The listing describes USB 3.2 Gen 1, USB Type-A and backward USB 2.0 compatibility, so confirm the port and performance needs of your device before buying.

Who is it for?

A good fit for

People needing a compact USB Type-A drive for transferring or keeping files between compatible PCs, laptops, TVs or car audio systems.
Buyers who want 128 GB of portable storage and a keyring loop.

Less suited to

People who need a USB-C connector or a specifically stated write speed.
Buyers whose devices lack a compatible USB port.

Lexar E31 128GB USB 3.2 Gen 1 Flash Drive · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 4,372 ratings

5 stars75%75%
4 stars17%17%
3 stars4%4%
2 stars1%1%
1 star3%3%

Aggregate customer ratings lean positive, with most ratings in the five-star category and a smaller spread across lower star levels. Without written feedback, these figures do not identify particular strengths or problems. They offer only a broad satisfaction signal, so buyers should judge fit by the stated 128 GB capacity, USB Type-A connection and device compatibility.

Frequently asked questions

What connector does the Lexar E31 use?

The listing specifies USB Type A. Check that your device has a compatible USB port.

What transfer speed does it claim?

The listed read speed is 100 Megabytes Per Second, and the feature copy describes speeds up to 100MB/s. The listing says actual speed may vary depending on the host device.

Can it work with USB 2.0 ports?

The product information claims backward compatibility with USB 2.0 ports.

Is the full 128 GB available for files?

The stated capacity is 128 GB. The listing notes that usable storage may be lower due to system formatting and other functions.