INFINITELY CONFIGURABLE. INFINITELY RECONFIGURABLE

Four NVMe M.2 SSD bays - Add up to 32TB of storage
Up to 2800MB/s
Compact design
Thunderbolt Certified for Mac and Windows
Includes Thunderbolt 3 cable
1 Year OWC Limited Warranty

PINT-SIZED POWERHOUSE

Small in stature. Big on capability. The OWC Express 4M2 is ready to serve with four easy-to-access M.2 NVMe SSD slots customizable for any workflow with vibration damping feet that allow for vertical or horizontal orientation. Install up to 16TB of capacity and experience up to 2800MB/s of mind-bending performance via Thunderbolt 3. The Express 4M2 is an amazingly small digital workhorse with world-renowned OWC quality and award-winning support built in.

Ingest and duplicate dailies at breakneck speeds, work with higher resolutions, smoothly scrub through demanding timelines, and plow through thousands of photos with ease. The OWC Express 4M2 is one seriously fast drive to have by your side to take your digital capabilities to a new level.

BUILT SMALLER AND FASTER FROM INPUT BY PROS LIKE YOU.

The OWC Express 4M2 is designed with superior ease-of-use in mind. We worked with award-winning creatives and listened to the kudos they heaped onto the OWC ThunderBay mini, and we put all that shared knowledge to good use when we set out to build the next-gen Thunderbolt 3 multi-bay drive. The result is the 57% smaller and 2.5x faster OWC Express 4M2.

It’s smaller and easier to fit into your workflow, studio and on stage. It’s faster with four easy-access M.2 slots so you can swap, upgrade or expand your Express 4M2 to configure and reconfigure it to serve any project need.

GAME-CHANGING NVME SSD PERFORMANCE

NVMe (Non-Volatile Memory Express) is a hyper-efficient communications interface protocol built from the ground up to properly take advantage of SSD technology and high-performance connection buses like PCIe. The result is exponentially faster and efficient SSD storage, and the OWC Express 4M2 has room for four NVMe SSDs.

PRO-TIPS: DAISY-CHAINING WITH THUNDERBOLT DEVICES

With the ability to run up to six devices per port, Thunderbolt ports amplify your laptop or desktop with peripheral power. Learn the basics of daisy-chaining Thunderbolt devices for maximum performance in this handy infographic. View Infographic

MECHANISMS SUPPORTED

NVMe M.2 SSD (2280 Form Factor, M-key)

DISPLAY SUPPORT

Up to one 4K display @ 60Hz,
or one 4K display @ 30Hz,
or two 4K displays @ 60Hz

DISPLAY SUPPORT BY PORT

Mini DisplayPort 1.2: Up to 4K @ 60Hz

BOOTABLE

All four drive bays are bootable on macOS. SSDs with 512 byte sectors require macOS 10.13 or later.

HOT PLUG SUPPORT

Yes

CHIPSET

(1) Thunderbolt 3 - Alpine Ridge DSL6540

CERTIFICATIONS

CE
FCC

DATA TRANSFER RATE (MAXIMUM)

Thunderbolt 3 : Up to 40 Gb/s (or 5000 MB/s)

RAID CAPABLE

Yes

RAID FEATURES

Software RAID

MTBF (MEAN TIME BETWEEN FAILURES)

Varies depending on drive mechanism installed

CONTACT START STOPS

Varies depending on drive mechanism installed

MAC OS COMPATIBILITY

macOS 10.12 Sierra
macOS 10.13 High Sierra
macOS 10.14 Mojave
macOS 10.15 Catalina
macOS 11.x Big Sur
macOS 12.x Monterey

PC OS COMPATIBILITY

Windows 10 32-bit Edition
Windows 10 64-bit Edition
Windows Server 2016

OTHER REQUIREMENTS

When using one or more SSDs with 512 byte sectors, macOS 10.13 or later is required.

HOST PORT REQUIREMENTS

Thunderbolt 3 or later

DRIVER REQUIRED

No

POWER SUPPLY

External UL-listed universal auto-switching power supply
Need an additional power supply? Secondary/replacement power supplies are also available.

AC INPUT

100-240V, 50-60Hz, 1-2A

DC OUTPUT

+12V, 6A

WATTAGE

72W Watts

EXTERNAL POWER ADAPTER

Yes

POWER DELIVERY

Two Thunderbolt 3 ports with 15W power delivery each.

REPLACEMENT ADAPTER PART NUMBER

OWCPWR12V6A (sold separately)

NUMBER OF BAYS

4

DEVICE PORTS

(2) Thunderbolt 3 (USB-C) Ports
(1) DisplayPort Port

COOLING

(1) 60mm 2,800RPM None cooling fan

SECURITY SLOT

No

POWER/ACTIVITY LED

Yes

HOUSING COLOR

Black

HOUSING MATERIAL

Aluminum

DIMENSIONS

Height: 6.0 cm (2.4 in)
Length: 11.3 cm (4.4 in)
Width: 13.6 cm (5.4 in)

WEIGHT

800.0 g (1.76 lbs)

AMBIENT TEMPERATURE

Operating: 32°F to 104°F (0°C to 40°C)
Non-Operating: -4°F to 158°F (-20°C to 70°C)

ALTITUDE

Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)

Thunderbolt Storage