Share this product
Add your review
Review OWC Express 4M2

OWC Express 4M2

out of stock
€299,00 * SRP
Secure payment
  • Founded in 2006
  • 30 days return
  • Delivery from stock

OWC Express 4M2

Small in size. Big on capability. OWC’s Express 4M2 is at your disposal with four easily accessible M.2 NVMe SSD slots, adaptable to every workflow with vibration dampening feet that allow for vertical or horizontal positioning. Install up to 8TB of storage and experience up to 2800 MB/s of overwhelming performance through a Thunderbolt 3 interface. The Express 4M2 is an amazingly small digital workhorse with world-renowned OWC quality and award-winning built-in support.

Customize your Express 4M2 with 4 NVMe SSDs, adjust them to any desired RAID level and connect it all using Thunderbolt 3 – the fastest and most versatile interface around. The unprecedented performance alone will help you meet your deadlines faster, giving your more time to explore your creativity and push your projects further.


Software Requirements

  • macOS 10.12 or later*
  • Windows 10 or later

Hardware Requirements

  • Mac or PC featuring Thunderbolt 3 interface
  • Mac or PC featuring Thunderbolt or Thunderbolt 2 interface**

Interface (Chipset)

  • (1) Thunderbolt 3 (Alpine Ridge DSL6540)
  • (2) USB-C and Power Delivery (Texas Instruments TPS65983)
  • (1) DisplayPort***

Max Transfer Rate

  • Thunderbolt 3: 40 Gb/s (5000 MB/s)

Display Support

  • 4K @ 60Hz

Drives Bays

  • (4) M.2 - 2280 "M Key" (PCIe 3.0 x1 per slot)

Drives Supported

  • (4) M.2 NVMe or
  • (4) M.2 AHCl (PCle only)

Fan Quantity

  • 1

Kensington Security Slot

  • No


  • Yes (Power and Activity)

Housing Material

  • Aluminum


  • Black

Plug and Play

  • No


  • CE
  • FCC


  • Power Supply
    • Internal UL-listed universal auto-switching
    • AC input: 100 ~ 240V, 50/60Hz
    • DC output: 12V, 7.5A


  • 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)


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


  • 0 g (1.76 lbs)

*   SSDs using 512b sector sizes require macOS 10.13 or later.
** Host computers with a Thunderbolt or Thunderbolt 2 port require the Apple Thunderbolt 3 (USB-C) to   Thunderbolt 2 Adapter.
*** Does not support Dual-Mode DisplayPort (DP++). Adaptable to HDMI, DVI, and VGA via active adapters. Supports Multi-Stream Transport (MST), although MST is not currently supported by macOS.