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Black two-bay SATA docking station with upright drive slots and LED indicators

Wavlink

Wavlink 334U-BL USB 3.0 dual-bay SATA dock 2×12TB

SKU CH-B2YR-CA377

Dual-bay SATA dock holds two 2.5 or 3.5 inch drives up to 12 TB each, connects via USB 3.0 and supports offline cloning with LED progress indicators

  • Size2.5 in & 3.5 in
  • Drive interfaceSATA I/II/III
  • External connectionUSB 3.0
  • Supported drivesDual SSD
  • Bay count2 Bay
  • Max capacity per bay2 × 12 TB
  • Connect two drives simultaneously with dual 2.5″/3.5″ bays
  • Offline clone without a PC shown by four LED progress lights
  • UASP protocol raises throughput up to 20 % over standard USB 3.0
  • Auto-sleep after 30 minutes idle cuts power draw
  • Tool-free hot-swap on Windows, Mac and Linux

Two-bay SATA dock for 2.5" and 3.5" drives

The Wavlink 334U-BL is a USB 3.0 docking station that holds two SATA hard drives or solid-state drives simultaneously. It accepts both 2.5" and 3.5" form factors without tools and connects to a host via a USB-B port. An included 12V 3A power adapter drives both bays, and the unit enters automatic sleep after 30 minutes of inactivity.

Suits technicians and archivists who swap bare

The dock is built for environments where drives are inserted and removed frequently, such as data recovery, imaging or testing workflows. It is not suited for users who need a permanent, sealed enclosure for a single drive or who require RAID functionality between the two bays. Buyers who want hardware encryption or network-attached access should look elsewhere.

Offline clone function copies drive to drive

A dedicated clone button starts a sector-by-sector copy from the source bay to the target bay while LEDs show progress at 25, 50, 75 and 100 percent. The target drive must be equal to or larger than the source, and the process runs at up to 60Mbps without any computer connected. This hardware-only clone mode is the feature that determines whether the dock fits a workflow.

How it compares

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

Price $22.99
Cheaper than about 66% of the 821 comparable items (median $30.99).

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Specifications

Product
Brand nameWavlink
Model name334U-BL
Product colorBlack
Product typeDocking Station
Storage
Drive interfaceSATA I/II/III
Supported drivesDual SSD
Bay count2 Bay
Max capacity per bay2 × 12 TB
Ports & slots
External connectionUSB 3.0
Power
Power adapterYes
Size & build
Size2.5 in & 3.5 in
Main materialAbs plastic
Compatibility
Supported operating systemsWindows
Mac OS X or above
In the box
In the box1 x ST334U Main Unit
1 x USB 3.0 A to B Cable
1 x DC12 V/3A Power Adapter
1 x User Manual

Questions about this item

Does the dock need its own power supply to run two 3.5-inch drives?

Yes, the unit ships with a 12 V 3 A DC adapter that must be connected for 3.5-inch drives to spin up.

Will my older USB 2.0 laptop still recognise the dock?

The dock falls back to USB 2.0 at 480 Mbps and USB 1.1 at 12 Mbps, so it will appear on legacy ports.

How do I know the offline clone finished without a PC attached?

The four clone LEDs light in sequence — 25 %, 50 %, 75 %, 100 % — and the 100 % LED stays solid when the copy is complete.

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