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Black aluminum desktop enclosure with four M.2 slots and a cooling fan

OWC

OWC OWCTB3EX4M2SL server chassis Thunderbolt 3 4-slot M.2

SKU CH-D3F4-8AD80 MPN OWCTB3EX4M2SL

A desktop enclosure holding four M.2 NVMe SSDs connects via Thunderbolt 3 and includes a cooling fan

  • Holds four M.2 drives for high-capacity storage
  • Thunderbolt 3 host interface delivers fast data transfer
  • Built-in cooling fan keeps drives at safe temperatures
  • Aluminium desktop chassis measures 2.4" high, 5.4" wide, 4.4" deep
  • Compatible with 2017-2018 Mac mini, iMac and MacBook Pro models

Four-slot M.2 NVMe enclosure

This desktop chassis holds up to four M.2 NVMe solid-state drives and connects to a host over Thunderbolt 3. It ships without drives installed so users can populate the bays with their own storage. A built-in cooling fan and aluminium body help manage thermals during sustained workloads. Software RAID support lets the drives be combined into redundant or striped volumes.

Upgrade from single-drive Thunderbolt storage

Replacing a single-bay enclosure with this four-bay unit adds capacity and RAID flexibility without changing the host interface. The jump is worth it when a workflow needs more throughput or data protection than one drive can provide. Mac mini late 2018, iMac Pro late 2017 and several 2017 iMac models are listed as compatible hosts. Users whose current host lacks Thunderbolt 3 cannot use this enclosure.

Fits on a desk alongside a Mac

The aluminium chassis measures 2.4 inches high, 5.4 inches wide and 4.4 inches deep, weighing approximately 1.76 lb. It requires a Thunderbolt 3 port on the host and draws power from its own supply. Four internal M.2 slots free up external drive clutter while keeping storage close to the workstation. Builders needing more than four drives or a different host interface will need another solution.

Highlights

  • Holds four M.2 drives for high-capacity storage
  • Thunderbolt 3 host interface delivers fast data transfer
  • Built-in cooling fan keeps drives at safe temperatures
  • Aluminium desktop chassis measures 2.4" high, 5.4" wide, 4.4" deep
  • Compatible with 2017-2018 Mac mini, iMac and MacBook Pro models

Specifications

BrandOWC
Shipping weight2.03 kg
Package size307 × 193 × 112 mm

Questions about this item

Will the 2.4 inch high, 5.4 inch wide, 4.4 inch deep aluminum chassis fit on my desk?

The desktop form factor measures 2.4 inches high by 5.4 inches wide by 4.4 inches deep and weighs 1.76 lb, so it fits on most desks.

How do I install the M.2 SSDs and which step is often missed?

Slide each M.2 SSD into one of the four slots at an angle, press down, and secure with the screw; the step often missed is tightening that screw so the drive stays seated.

What maintenance will the cooling fan need over time?

The built-in cooling fan should be kept clear of dust; use compressed air occasionally to blow out the vents and maintain airflow.

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