Corsair EX300U 4TB External SSD

4 TB
CHF142.25/1TB
Ratings
BrandMore from Corsair
Currently out of stock
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Memory Size3

Product details

The Corsair EX300U 4TB External SSD is a powerful and versatile storage solution, ideal for users who require high speeds and large storage capacities. With a storage capacity of 4 terabytes, this external solid-state drive offers ample space for extensive data, whether for professional applications, multimedia content, or personal files. The SSD utilizes the modern USB-C interface and supports USB 3.1 (3.1 / 3.2 Gen. 2), enabling a maximum read speed of up to 1100 MB/s and an equally high write speed. This ensures fast data transfer and efficient workflow. The EX300U is also formatted with an exFAT file system, ensuring compatibility with both Windows and Mac operating systems. Its compact design and sleek black finish make it a practical companion for on-the-go use.

  • Maximum read speed of 1100 MB/s
  • Maximum write speed of 1100 MB/s
  • Compatible with Windows and Mac OS thanks to exFAT file system
  • USB-C interface for fast data transfer.

Key specifications

USB ports
USB-C
Read transfer speed
1100 MB/s
Write transfer speed
1100 MB/s

General information

Item number
62292672
Manufacturer
Corsair
Category
External SSDs
Manufacturer no.
CSSD-EX300U4TB
Release date
30.9.2025
Sales rank in Category External SSDs
137 of 688

Colour

Colour
Black, Grey
Exact colour description
Black, Grey, Grey

Data storage properties

Storage capacity
4 TB
USB ports
USB-C
Read transfer speed
1100 MB/s
Write transfer speed
1100 MB/s

Origin

Country of origin
Taiwan

Voluntary climate contribution

CO₂ emissions
15.9 kg
Climate contribution
CHF 0.38

Scope of delivery

Scope of delivery
USB C to C cable

Product dimensions

Length
6.40 cm
Width
6.43 cm
Height
1.20 cm
Weight
98 g

Package dimensions

Length
13.50 cm
Width
11 cm
Height
2.50 cm
Weight
96 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «External SSDs» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 13.Synology
    1.4 %
  • 14.Crucial
    1.5 %
  • 15.Adata
    1.7 %
  • 16.Corsair
    2.1 %
  • 17.SanDisk Professional
    2.7 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • 1.Corsair
    2 days
  • 1.OWC
    2 days
  • 3.Adata
    3 days
  • 3.Crucial
    3 days
  • 3.Intenso
    3 days

Return rate

How often is a product of this brand in the «External SSDs» category returned?

Source: Digitec Galaxus
  • 13.LaCie
    2.1 %
  • 13.Lexar
    2.1 %
  • 15.OWC
    5 %
  • 16.Corsair
    5.1 %
  • 17.SanDisk Professional
    7.5 %
Source: Digitec Galaxus