OWC Express 1M2

4000 GB
CHF148.24/1TB
7Ratings
BrandMore from OWC
Test reports1 test
Delivered between Wed, 7.5. and Fri, 9.5.
5 items in stock at third-party supplier
Supplied by
JACOB DE

Memory Size

Product details

Whether you are reusing a drive, starting with a new one, or seeking the convenience of an immediately ready solution, an Express 1M2 will equip your workflow with the highest performance and reliability.

Key specifications

Interface
USB-C
Read transfer speed
3151 MB/s
Write transfer speed
3151 MB/s
Item number
40849941

General information

Manufacturer
OWC
Category
External SSD
Manufacturer no.
OWCUS4EXP1MT04
Release date
13.12.2023

Colour

Colour
Silver
Exact colour description
Aluminium

Data storage properties

Storage capacity
4000 GB
Interface
USB-C
Read transfer speed
3151 MB/s
Write transfer speed
3151 MB/s
Form factor
M.2

Origin

Country of origin
Taiwan

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
Cable: USB Type-C

Product dimensions

Length
13.20 cm
Width
7 cm
Height
2.30 cm

Package dimensions

Length
13 cm
Width
5 cm
Height
16 cm
Weight
300 g

30-day right of returnReturn policy
24 Months Bring-in WarrantyWarranty provisions
2 additional offers

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Goes with

Reviews & Ratings

Warranty score

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

Source: Digitec Galaxus
  • 7.SanDisk
    0.7 %
  • 10.Crucial
    0.8 %
  • 11.OWC
    1 %
  • 12.Adata
    1.3 %
  • 13.Kingston
    1.4 %

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
  • OWC
    Not enough data
  • 1.Intenso
    0 days
  • 1.LaCie
    0 days
  • 1.Verbatim
    0 days
  • 4.Adata
    2 days

Return rate

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

Source: Digitec Galaxus
  • 14.Adata
    2 %
  • 15.Lexar
    3.7 %
  • 16.Synology
    5 %
  • 17.SanDisk Professional
    6 %
  • 18.OWC
    7.8 %
Source: Digitec Galaxus

Translation: machine translated
Without ratingNo rating
Macwelt spezialFestplatten und SSDs im TestReleaseMarch 2025
  • PositiveVery high data transfer rates
  • Positivehigh-quality body
  • PositiveGood cooling without ventilation
  • NegativeShort connection cable

Like the Adata solution also presented in the overview, the expensive 1M2 model offers excellent data rates: Thanks to the USB 4.0 interface, up to 3,000 MB/s can be achieved on an ARM Mac. One advantage: thanks to the housing with cooling fins, the model does not require an internal fan (on an Intel Mac, however, it only achieves just under 1,000 MB/s)...