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Kingston DataTraveler SE9 G3 128GB USB 3.2 Gen 1 Type-A Metal Flash Drive 220 MB/s Read 100 MB/s Write 5 g

Brand:
Kingston
Kingston DataTraveler SE9 G3 USBStick 128 GB KEU2X1281AC
Kingston DataTraveler SE9 G3 128GB USB 3.2 Gen 1 Type-A Metal Flash Drive 220 MB/s Read 100 MB/s Write 5 g
€38.83 inc. VAT
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KE-U2X128-1AC
€32.63
€38.83 inc. VAT
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Product Code
03:277972
EAN Code
0740617352450
Manufacturer
Kingston

Quick Specs

Capacity
128 GB
Interface
USB 3.2 Gen 1, Type-A
Speed
220 MB/s read, 100 MB/s write
Body
Metal, 5 g, 39 mm long
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Kingston DataTraveler SE9 G3 128 GB — Metal Body

220 MB/s read100 MB/s write5 g metal casing5-year Kingston warranty

The Kingston DataTraveler SE9 G3 is a 128 GB USB-A flash drive in a premium metal casing that weighs 5 grams and measures 39 × 12.2 × 4.6 mm — small enough that it sits almost flush in a laptop port. Kingston publishes 220 MB/s read and 100 MB/s write, and those figures are the same across 64, 128, 256 and 512 GB, so this capacity is not a slower version of the family. It carries Kingston’s five-year warranty with free technical support.

Compatibility — check before buying:
This drive is supplied under the part number KE-U2X128-1AC, a Kingston channel code rather than the familiar DTSE9G3/128GB retail code. Kingston’s own part search resolves it and lists the SE9 G3 specifications and product image against it, but it does not print the words “DataTraveler SE9 G3” on that entry — so the specifications below are Kingston-confirmed while the name is matched from Kingston’s own image asset and spec table. The other thing to check before ordering: the SE9 G3 ships in more than one finish, including a gold version with its own product page. Ordering by “SE9 G3 128 GB” alone can get you the wrong colour, so quote the part number. It is a USB Type-A drive with no USB-C connector, and Kingston does not print a keyring loop in the datasheet, so do not count on one.

Best For

✓ Leaving permanently in a laptop or car USB port
✓ A pocket drive that will not snap
✓ Fast transfers where a published speed matters
✓ Carrying a working set of documents and photos
✓ Handing files over without a cable
✓ A drive that survives keys and coins

Key Features

 
Published speeds, flat across capacities
220 MB/s read and 100 MB/s write, and Kingston prints the same figures for 64, 128, 256 and 512 GB. Bigger is not faster here, which means this 128 GB is the full-speed part, not a cut-down one.
 
Metal casing, 5 grams
A premium metal shell at 39 × 12.2 × 4.6 mm and 5 g. It is small enough to leave plugged into a laptop or a car stereo and solid enough to live loose in a pocket with keys.
 
USB 3.2 Gen 1 speeds
Kingston states USB 3.2 Gen 1 speeds over a USB Type-A connector, backwards compatible with older ports at their own rates.
 
Five years, with support behind it
Kingston publishes a five-year warranty with free technical support, which is longer than most drives at this size and price carry.

Technical Specifications

Identification
Brand Kingston
Series DataTraveler SE9 G3
Part Number KE-U2X128-1AC
EAN / GTIN 0740617352450
Capacity 128 GB
Retail Equivalent DTSE9G3/128GB
Colour Dark nickel finish; the SE9 G3 is also sold in gold, so confirm the finish by part number
Interface & Performance
Standard USB 3.2 Gen 1 speeds, as Kingston states it
Connector USB Type-A
Read Speed Up to 220 MB/s
Write Speed Up to 100 MB/s
Speed by Capacity Identical at 64, 128, 256 and 512 GB
Physical
Dimensions 39 × 12.2 × 4.6 mm
Weight 5 g
Housing Material Premium metal casing
Keyring Loop Not stated in Kingston’s datasheet
Environment & Compatibility
Operating Temperature 0 °C to 60 °C
Storage Temperature -20 °C to 85 °C
Operating Systems Windows 11, macOS 13.7.6 or later, Linux 4.4.x or later, Chrome OS
In the Box
Contents Kingston does not publish a box-contents list. Expect the drive alone — no cable, no lanyard, no software.
Warranty
Warranty 1-Year Warranty (Singular)
Manufacturer Term Kingston publishes a 5-year warranty with free technical support on this model. Singular’s direct warranty is 1 year; beyond that we assist you with the manufacturer’s warranty process for its full duration.

Frequently Asked Questions

Is the 128 GB slower than the 256 or 512 GB version?
No. Kingston publishes 220 MB/s read and 100 MB/s write for every capacity in the SE9 G3 line, from 64 GB to 512 GB. That is unusual and worth knowing — on many drive families the smaller capacities really are slower, so buying up for speed makes sense. Here it does not.
Why is the part number KE-U2X128-1AC and not DTSE9G3/128GB?
KE- codes are a Kingston channel and packaging scheme. Kingston’s part search resolves KE-U2X128-1AC and shows the SE9 G3 specifications and product image against it. The drive is the same hardware; the code reflects how it is packed and supplied rather than a different product.
Can I leave it plugged in permanently?
That is what the shape is for. At 39 mm long and 4.6 mm thick it protrudes very little, and the metal body handles the knocks that a plastic drive would not. It is a common choice for car stereos, smart TVs and laptops that need permanent extra storage.
Will it work with a phone?
Not directly. This is USB Type-A only. A USB-C phone or tablet needs an adapter and OTG support. If phone use is the point, a dual USB-A and USB-C drive is the better buy.
Singular Expert Insight
The SE9 G3 is the drive to pick when you want a published speed and a body that will not break. Two facts do most of the deciding. First, 220 MB/s read and 100 MB/s write are actually stated by Kingston — a lot of drives at this price publish nothing at all, which makes honest comparison impossible. Second, those figures do not change with capacity, so there is no speed argument for buying a bigger one than you need. What to watch on ordering is the finish: the SE9 G3 exists in more than one colour and the names collide, so quote the part number rather than the model name. Tell us where the drive will live — a laptop, a car, a TV — and we will confirm the fit before you buy.

Buyer’s Guide

Buy it if

You want a small metal USB-A drive with speeds Kingston actually publishes, 128 GB is the right size, and you value a five-year warranty on something this small.

Skip it if

You need USB-C for a phone or a modern laptop, you need a keyring loop you can rely on, or you need hardware encryption for confidential files.

Also consider

Kingston’s DataTraveler Micro for an even smaller metal drive with a built-in key loop, or the DataTraveler microDuo 3C if you also need a USB-C connector.

Features - Kingston - KE-U2X128-1AC

Colour
grey
Interface
  • USB3.2
More Details
Product Code
03:277972
EAN Code
0740617352450
Manufacturer
Kingston
Technical specifications
Capacity
128GB
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