OWC Express 1M2

4 TB
CHF152.42/1TB
Delivered between 2.1.2026 and 6.1.2026
Supplied by
JACOB DE
free shipping

Memory Size4

Product details

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

Key specifications

Form factor
M.2 2280
SSD Features
SMART Support
USB ports
USB-C
Write transfer speed
3151 MB/s
Read transfer speed
3151 MB/s
Item number
40849941

General information

Manufacturer
OWC
Category
External SSD
Manufacturer no.
OWCUS4EXP1MT04
Release date
13.12.2023
Sales rank in Category External SSD
186 of 727

Colour

Colour
Silver
Exact colour description
Silver

Data storage properties

Storage capacity
4 TB
USB ports
USB-C
Read transfer speed
3151 MB/s
Write transfer speed
3151 MB/s
Form factor
M.2 2280
SSD Features
SMART Support

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1 x Thunderbolt 3 cable - external - 30 cm

Product dimensions

Length
13.20 cm
Width
7 cm
Height
2.30 cm
Weight
260 g

Package dimensions

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

30-day right of return
24 Months Warranty (Bring-in)
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
  • 13.Adata
    1.4 %
  • 13.Crucial
    1.4 %
  • 13.OWC
    1.4 %
  • 16.Silicon Power
    1.5 %
  • 17.Corsair
    1.7 %

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

Return rate

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

Source: Digitec Galaxus
  • 12.LaCie
    2.2 %
  • 14.Lexar
    2.6 %
  • 15.Corsair
    3.6 %
  • 16.OWC
    5.3 %
  • 17.SanDisk Professional
    5.9 %
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)...