TOSHIBA Thunderbolt 3 Dock - Model PA5281A-1PRP

Good working condition.

Downsides are there are some cosmetic marks on mainly the top of the unit, and the power supply is a little bit noisy (coil whine). It is basically inaudible if you put it under a desk or in a cable tray/box, but if it's on your desk you'll probably hear it a little. I understand this is common with many of these docks from several brands that use Chicony OEM PSUs.

This dock comes with everything you need, including 100W power supply and cable, and 0.75m Thunderbolt 4 40Gbps cable (I can confirm this allows dual 1440p displays at 75Hz via a single cable).

Specs:

45W Power Delivery 2x USB Type C ports 4x USB Type A ports (1 front, 3 rear) 1Gbit Ethernet adaptor with RJ45 port (rear) Two display outputs with multiple port options each - 1x (HDMI or DP), and 1x (HDMI, miniDP, or VGA) 3.5mm audio out/mic combo jack (front)

Tested to support 2x 1440p outputs at the same time as the inbuilt display (mDP -> DP, and HDMI) on an M1 Pro and M2 Max MacBook Pro. Quite a number of docks struggle with this due to macOS not supporting Displayport DSC.

I've upgraded to the Thunderbolt 4 version of this dock (Dynabook branded) - which is actually trickier to get working under MacOS than this one - because I needed higher power delivery for the more power-hungry M2 Max. If you use a non-max/ultra M-series CPU and don't peg the CPU constantly, there's a good chance that the 45W PD on this dock is actually more than sufficient if you mostly use your machine at a desk. You can of course also connect MagSafe at the same time (but it's handy keeping that adaptor in my bag!)