The Dell Thunderbolt Dock WD22TB4 is a 13-port Thunderbolt 4 dock designed primarily for Dell laptops, delivering up to 130W of power — though non-Dell systems are limited to 90W. It supports up to three displays via its two DisplayPort 1.4 outputs and one HDMI 2.0 output, with the multifunction USB-C port adding a fourth video path when not used for data. A subtle limitation is that the HDMI and the multifunction USB-C DisplayPort port cannot both be used as displays simultaneously. Three USB-A 3.2 Gen 1 (5 Gbps) ports and a Gigabit Ethernet port round out the rear panel.
Device Information
- Manufacturer
- Dell
- Release Year
- 2022
- Model Number
- WD22TB4
- Category
- Dock / Hub
Source: manufacturer product page · Last updated: · How we verify port data →
Available Ports
| Connector | Quantity | Power (PD) | Capabilities | Label | Notes |
|---|---|---|---|---|---|
| Thunderbolt 4 (USB-C) | 1 | 130 W | DP Alt Mode Thunderbolt | Upstream (to laptop, rear) | 40 Gbps, 130W PD to Dell laptops, 90W to non-Dell |
| Thunderbolt 4 (USB-C) | 2 | 15 W | DP Alt Mode Thunderbolt | Thunderbolt 4 downstream (rear) | 40 Gbps each, 15W bus power; supports daisy chaining and Thunderbolt peripherals |
| DisplayPort 1.4 | 2 | — | — | DisplayPort 1.4 (rear) | Supports up to 4K@120Hz or 8K@30Hz per port |
| HDMI 2.0b (Type A – Standard) | 1 | — | — | HDMI 2.0 (rear) | 4K@60Hz; cannot be used simultaneously with the MFDP USB-C video output |
| USB Type-C (USB 3.2 Gen 2) | 1 | 15 W | DP Alt Mode | USB-C Multifunction DP (MFDP) | 10 Gbps, supports DisplayPort alt mode for video output; 15W charging. Cannot be used for display simultaneously with HDMI. |
| USB Type-C (USB 3.2 Gen 2) | 1 | 15 W | — | USB-C downstream (data/charging) | 10 Gbps, 15W charging, data only |
| USB Type-A (USB 3.2 Gen 1) | 3 | — | — | USB-A 3.2 Gen 1 | 5 Gbps each; one is a PowerShare port that keeps charging while the dock sleeps |
| RJ-45 (Gigabit Ethernet) | 1 | — | — | Gigabit Ethernet (rear) | 1 Gbps wired networking |
| 3.5mm TRRS (Headset with Mic) | 1 | — | — | Audio Combo Jack | Combined headphone/microphone jack |
| Kensington Security Slot | 1 | — | — | Security Lock Slot | Supports both Noble Wedge and Kensington lock |
Notes & Compatibility
130W PD only with compatible Dell laptops; 90W for non-Dell systems. HDMI 2.0 and MFDP USB-C cannot be used as displays simultaneously — only one at a time. No SD card reader. Noble Wedge and Kensington lock slots both present. The upstream Thunderbolt cable is 0.8 m, so the dock has to sit within arm’s reach of the laptop — there is no slack for hiding it behind a monitor. Those PD figures assume the 180W brick Dell ships; a smaller third-party adapter drops both numbers. One of the three USB-A ports is a PowerShare port, which keeps charging a phone while the dock is asleep. Dell’s own spec sheet rates the dock for up to four displays.