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Black aluminium four-bay NVMe enclosure with USB-C port

Syba

Syba SY-TDB40179 4-bay USB4 40Gbps NVMe drive enclosure

SKU CH-7WRW-KE4R4 MPN SY-TDB40179

Four-bay USB4 40 Gbps NVMe docking station clones one drive to three offline and holds up to 32 TB across 2230 to 22110 form factors

  • Drive interfaceM.2 NVME B+M-Key
  • Bay count4 Bay
  • Product colorBlack
  • Main materialAluminum alloy
  • Four bays hold up to 32TB total NVMe storage
  • USB4 Gen 4×4 and Thunderbolt 3 deliver 40Gbps peak throughput
  • One-touch offline cloning copies one SSD to three targets
  • Full aluminium alloy chassis provides passive cooling without fans
  • Supports M.2 NVMe B+M-Key drives in 2230, 2242, 2260, 2280 and 22110 sizes

Four-bay NVMe enclosure

The Syba SY-TDB40179 is a USB4 40Gbps docking station that accepts up to four M.2 NVMe SSDs in 2230, 2242, 2260, 2280 or 22110 form factors. It is built for professionals who need portable, high-capacity storage without installing drives inside a chassis. The aluminium alloy housing acts as a passive heatsink for sustained operation. It is not suited for users who require SATA M.2 support or a single-bay form factor.

USB4 and Thunderbolt connectivity

Each bay connects through a USB4 Gen 4x4 interface that also works with Thunderbolt 3, 4 and 5 host ports. A 12V 3A power adapter supplies the dock, freeing the host from providing bus power for four drives. The direct-insert design leaves the PCB exposed to airflow, so no active cooling is required. Builders who need internal RAID cards or 2.5-inch SATA bays will not use this device.

Offline cloning and thermal limits

A hardware button starts a one-to-three offline clone without a host computer attached. The enclosure is rated for an operating range of 0°C to 108°C and storage from -40°C to 110°C. Combined capacity across all four slots can reach 32TB. Users who expect hardware RAID 0, 1 or 5 managed by the dock itself will not find that feature here.

How it compares

Measured against everything we stock in External Drive Enclosures, at today’s prices. Recalculated every night.

Price $86.99
Pricier than about 76% of the 821 comparable items (median $30.99).

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Specifications

Product
Brand nameSYBA
Model nameSY-TDB40179
Product colorBlack
Storage
Drive interfaceM.2 NVME B+M-Key
Bay count4 Bay
Ports & slots
Thunderbolt 3 supportYes
Size & build
Main materialAluminum alloy
Shipping weight0.52 kg
Package size184 × 140 × 51 mm

Questions about this item

Will the aluminium case and passive airflow keep the four drives cool during continuous all-day operation?

The full aluminium alloy enclosure uses a direct-insert design that creates open airflow for passive cooling, and the supplier rates the operating temperature range from 0 °C to 108 °C.

Which drives must I already own to populate the four bays?

You need M.2 NVMe SSDs with M-Key or B+M-Key connectors in 2230, 2242, 2260, 2280 or 22110 form factors; SATA-based M.2 drives are not supported.

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