# KOOTION 64GB USB 3.0 Metal Flash Drive

Source: https://www.ranked10.co.uk/tech/best-64gb-usb-flash-drives/kootion-64gb-usb-flash-drive
Ranked #8 in "Best 64GB USB Flash Drive 2026: 9 Ranked, and Three Spec Sheets That Contradict Themselves": https://www.ranked10.co.uk/tech/best-64gb-usb-flash-drives

- Price: £8.15 (checked on Amazon UK on 2026-09-19)
- Amazon rating: 4.4 from 499 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B092D2HD5D?tag=ranked10-21

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.

## Specification

| Field | Value |
|---|---|
| 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 |

## 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.