Rank #8 in Best 64GB USB Flash Drive 2026: 9 Ranked, and Three Spec Sheets That Contradict Themselves
KOOTION 64GB USB 3.0 Metal Flash Drive
Price and rating as shown on Amazon when we collected them. Both change.
The KOOTION USB 64GB 3.0 Memory Stick Waterproof Flash Drive sits at number 8 in this guide. It is a £8.15 metal-bodied USB-A stick with 64GB of capacity, a keychain loop and a 4.4 out of 5 rating from 499 ratings. What puts it in the round-up is its own spec table: the listing gives a read speed of 100 Megabytes Per Second and a write speed of 70-100 MB/s. The top of that write range is the read figure — the same 100 MB/s appears as both the fastest it can supposedly write and the speed it reads at. On a USB flash drive, writing as fast as it reads does not happen, so the write field has been filled in with the read number.
The rest of the listing is more ordinary. The drive is described as USB 3.0, with a hardware interface field that also covers USB 1.1 and USB 2.0, and it is listed as compatible with Windows 10/NT/ME/2000/XP/7/8.1 and above, Linux and Mac OS 10.3 and above. One buyer says they plugged it into a Pi 5 USB 3 port and got 1.2GB per sec; a 5 Gbps USB 3.0 port carries 625 MB/s at most, so that figure is roughly double what the port can move. Everything on this page is taken from the Amazon listing and from buyer reviews — we have not run our own speed or capacity tests on this drive.
How those 499 ratings break down
An average hides its own shape. This is the spread behind the 4.4 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £8.15 |
|---|---|
| Customer rating | 4.4 out of 5 from 499 ratings |
| Read speed (as listed) | 100 Megabytes Per Second |
| Write speed (as listed) | 70-100 MB/s |
| Capacity | 64 GB |
| Hardware interface (as listed) | USB 1.1, USB 2.0, USB 3.0 |
| Model | U311-Silver-64G-3.0-I |
| Best Sellers Rank | 19 in USB Flash Drives |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“I was looking for a 64GB USB drive to put my music onto so I could plug it into a Kodi player. i checked the capacity using H2testw and all was good. I plugged the drive into my pi5 usb 3 port and it achieved 1.2GB per sec. So, why are you waiting? I bought another.”
Verified purchase“Good memory stick, capacity as described with no data loss. Excellent on the keys as the body is one piece so no risk of anything snapping off. Been using for several months now with no problems.”
What it is up against
The rivals it was ranked against in Best 64GB USB Flash Drive 2026: 9 Ranked, and Three Spec Sheets That Contradict Themselves.
Questions people ask
How fast does the KOOTION 64GB drive transfer data?
The listing gives a read speed of 100 Megabytes Per Second and a write speed of 70-100 MB/s, so the top of the write range is the same figure as the read speed.
Is the KOOTION U311 drive waterproof?
The listing says it is completely waterproof and that it can withstand dust, static electricity, magnetism and high temperature.
What can I plug the KOOTION 64GB drive into?
It is listed as compatible with USB 3.0, USB 2.0 and USB 1.1 ports, and with Windows 10/NT/ME/2000/XP/7/8.1 and above, Linux and Mac OS 10.3 and above. Compatible devices are listed as PC, laptop, TV, car and audio.
Do I need to install anything to use it?
No. The listing describes it as plug and play, working directly out of the box to transfer files between two devices with a USB-A port.
Can I keep the KOOTION flash drive on a keyring?
Yes. The listing says you can attach the 64GB USB 3.0 thumb drive to a key chain easily.
How much does the KOOTION 64GB USB 3.0 drive cost?
It is priced at £8.15, and the listing carries 4.4 out of 5 from 499 ratings.
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