Rank #8 in Best 256GB USB Flash Drives 2026: 10 Ranked by Their Own Spec Tables
Integral 256GB USB 3.0 Flash Drive, Black
Price and rating as shown on Amazon when we collected them. Both change.
The Integral 256GB Black USB 3.0 Gen 1 flash drive sits at number eight in this guide. It is a black capped stick listed at £28.50 for 256GB, carrying a 4.2 rating from 6,675 ratings. That average is one of the few numbers here that holds up: 65% of those ratings are five-star and 9 are one-star, and the histogram works out at 4.27, which is what the listing rounds down to 4.2.
The speed claim is where it gets slippery. The title and bullets lean on 'USB 3.0 SuperSpeed' and offer only a relative figure — 'up to 10x faster than USB 2.0' — with no megabytes per second anywhere in the headline copy. The specification table supplies the actual numbers: 120 Megabytes Per Second read, and a write figure written as 'bis zu 15MB/s', a German phrase left untranslated on the listing. The item type name separately calls the same drive 'USB 3.2 Gen 1', the newer label for the same standard. As everywhere in this guide, the number to trust is the one in the spec table. Everything on this page comes from the Amazon listing — the seller's own descriptions, specifications and customer ratings — and not from any testing we have carried out.
How those 6,675 ratings break down
An average hides its own shape. This is the spread behind the 4.2 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £28.50 |
|---|---|
| Rating | 4.2 out of 5 from 6,675 ratings |
| Capacity | 256 GB |
| Read speed (spec table) | 120 Megabytes Per Second |
| Write speed (spec table) | bis zu 15MB/s (as listed) |
| Interface | USB 3.0 in the title, described as USB 3.2 Gen 1 in the item type name |
| Colour | Black |
| Weight | 20 g |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“This USB flash drive does exactly what's needed. Transfer speeds are quick thanks to the USB 3.2 connection, and the 64GB capacity provides plenty of space for documents, photos, videos, and backups.The bright neon yellow colour is a real bonus, making it easy to find in a drawer or laptop bag, unlike standard black drives that seem to disappear. It's lightweight, compact, and has worked reliably across multiple devices without any issues.Great value for money, dependable performance, and easy to spot when you need it. Highly recommended.”
Verified purchase“The bright colours are helpful, when looking for the stick.N.B. The stick doesn't have USB 3.0 written on it, like it does in the picture.”
What it is up against
The rivals it was ranked against in Best 256GB USB Flash Drives 2026: 10 Ranked by Their Own Spec Tables.
Questions people ask
How fast is the Integral 256GB Super Speed flash drive?
The listing gives no MB/s figure in the title or the bullets; they only say USB 3.0 SuperSpeed is 'up to 10x faster than USB 2.0'. The specification table gives 120 Megabytes Per Second read and a write figure of 'bis zu 15MB/s', and that is the figure worth using.
Is the Integral drive backwards compatible with USB 2.0?
Yes. The bullets state that USB 3.0 SuperSpeed is backwards compatible with USB 2.0 systems, and that the drive is plug-and-play with any USB-compatible device, Microsoft Windows Vista XP/7/8/10/11 and Mac OS.
What capacity and colour is this exact listing?
256 GB in black, model number INFD256GBBLK3.0, weighing 20 g. Some of the customer reviews shown on the listing describe 32GB and 64GB drives in a bright yellow colour, which are not this 256GB black version.
Will I lose the cap?
The listing says the cap attaches to the end of the drive when it is in use, so it is not left loose.
What do buyers say about the Integral 256GB drive?
It holds 4.2 out of 5 from 6,675 ratings, with 65% of those ratings at five stars and 9 at one star. One reviewer notes that the drive does not have USB 3.0 written on it, unlike the picture.
Which phones and devices does it list as compatible?
The specification table lists compatible phone models as Acer, Asus, Dell and Samsung (as listed), and lists USB 3.0, USB 3.1, USB 3.2, USB 2.0 and USB under compatible devices.
Comments
Reader comments are not checked against the manufacturer's claims above.
No comments yet
Be the first to add something we missed — a price change, a spec that turned out wrong, or how one of these held up.
Leave a comment
No account needed. Own one of these? Tell other readers how it actually performed.