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Silver aluminium four-bay NVMe enclosure with cooling fan

Acasis

Acasis EC-3901 4-bay NVMe drive enclosure 40Gbps Thunderbolt

SKU CH-B3NG-Q003F MPN EC-3901

Four-bay NVMe enclosure with 40 Gbps Thunderbolt speed, software RAID modes, and a cooling fan keeping drives at 40 °C (104 °F)

  • ColorSilver
  • MaterialAluminum
  • External Interface1:1
  • HDD Count SupportedNo
  • Number of Bay4 Bay
  • Up to 27Gbps single-drive read speed for instant file access
  • Up to 16Gbps per drive with four SSDs for parallel throughput
  • Turbo cooling fan keeps drives as low as 40°C (104°F) under load
  • Tool-free magnetic bays let you swap four 8TB NVMe SSDs in seconds
  • Daisy-chain Thunderbolt ports expand workstations without extra docks

4-bay NVMe enclosure with 40 Gbps Thunderbolt

The Acasis EC-3901 is a four-bay NVMe enclosure that connects through a single Thunderbolt 5, Thunderbolt 4, Thunderbolt 3 or USB4 port. It accepts four M.2 NVMe drives up to 8 TB each and reaches a total of 32 TB in Larger mode. An all-aluminium chassis and a built-in turbo fan keep drive temperatures low during sustained workloads.

Creative professionals needing massive NVMe RAID

Editors, designers and developers who want software RAID 0, 1, 5 or 10 across four NVMe drives will benefit from the 40 Gbps link and per-drive speeds up to 16 Gbps. Users whose host only offers USB 3.x or USB 3.2 cannot reach the rated bandwidth. Builders who need fewer than four bays or a portable single-drive dock should choose a smaller unit.

40 Gbps Thunderbolt host interface required

The enclosure only works with Thunderbolt 5, Thunderbolt 4, Thunderbolt 3 or USB4 ports; a USB 3.x or USB 3.2 connection will not function. Verify that your Mac, Windows PC, Chrome OS device or iPad provides one of these interfaces before purchase.

Highlights

  • Up to 27Gbps single-drive read speed for instant file access
  • Up to 16Gbps per drive with four SSDs for parallel throughput
  • Turbo cooling fan keeps drives as low as 40°C (104°F) under load
  • Tool-free magnetic bays let you swap four 8TB NVMe SSDs in seconds
  • Daisy-chain Thunderbolt ports expand workstations without extra docks

Specifications

ColorSilver
MaterialAluminum
External Interface1:1
HDD Count SupportedNo
Number of Bay4 Bay

Questions about this item

How loud is the built-in turbo cooling fan when the Acasis EC-3901 runs continuously and keeps four SSDs at 40 °C (104 °F)?

The all-aluminum body and built-in turbo cooling fan maintain SSD temperatures as low as 40 °C (104 °F) during sustained operation, providing active thermal management for all four bays.

Which host port must my computer already have for the Acasis EC-3901 to function?

The enclosure only works with Thunderbolt 5, Thunderbolt 4, Thunderbolt 3 or USB4 ports; it will not operate on standard USB-C or USB 3.x connections.

Can I daisy-chain the Acasis EC-3901 with an older Thunderbolt 3 RAID array on the same bus?

Yes, the EC-3901 supports daisy-chaining, so it can sit downstream of or upstream from legacy Thunderbolt 3 devices while sharing the 40 Gbps bandwidth.

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