Dell's 2024 Pro-series Thunderbolt 4 dock is sized for AI PC workloads with up to 130W of host charging via a captive Thunderbolt 4 cable and a 180W external PSU. The rear panel sets up four-display workflows out of the box — two DisplayPort 1.4, one HDMI 2.1, and one Multi-function DisplayPort USB-C 3.2 Gen 2 carrying DP Alt Mode. Network duty falls on a 2.5 Gigabit Ethernet jack, and downstream USB consists of four USB-A 3.2 Gen 2 plus one rear USB-C 3.2 Gen 2 with 15W charging. Two extra Thunderbolt 4 downstream ports add 15W each for daisy-chained TB peripherals.
Device Information
- Manufacturer
- Dell
- Release Year
- 2024
- Model Number
- WD25TB4
- 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 | Thunderbolt 4 Upstream (Host, captive cable) | Captive cable to laptop; up to 130W host PD; 40Gbps |
| Thunderbolt 4 (USB-C) | 2 | 15 W | DP Alt Mode Thunderbolt | Thunderbolt 4 Downstream (rear) | 15W each; 40Gbps for chained TB peripherals or displays |
| DisplayPort 1.4 | 2 | — | — | DisplayPort 1.4 (rear) | DP 1.4 outputs for desktop displays |
| HDMI 2.1 (Type A – Standard) | 1 | — | — | HDMI 2.1 (rear) | HDMI 2.1 output |
| USB Type-C (USB 3.2 Gen 2) | 1 | 7 W | DP Alt Mode | USB-C MFDP (rear) | Multi-function DisplayPort — 10Gbps data + DP Alt Mode video; 7.5W power |
| USB Type-C (USB 3.2 Gen 2) | 1 | 15 W | — | USB-C 10Gbps (rear, 15W) | Downstream USB-C; 10Gbps; 15W charging |
| USB Type-A (USB 3.2 Gen 2) | 4 | 4 W | — | USB-A 10Gbps | Two front, two rear; 4.5W each |
| RJ-45 (2.5G Ethernet) | 1 | — | — | 2.5G Ethernet (rear) | Multi-gig wired networking |
| 3.5mm TRRS (Headset with Mic) | 1 | — | — | Combo Audio (front) | Headset combo jack |
Notes & Compatibility
Up to 130W host PD via the captive TB4 cable. 180W external PSU. Quad-display capable (2x DP 1.4 + HDMI 2.1 + MFDP USB-C). USB-A ports rated 4.5W. Rear USB-C 3.2 Gen 2 provides 15W charging. Multi-function USB-C provides 7.5W and DP Alt Mode video output.
Common questions
How many ports does the Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) have?
The Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) has 14 ports in total: 3 × Thunderbolt 4 (USB-C), 2 × DisplayPort 1.4, 1 × HDMI 2.1 (Type A – Standard), 2 × USB Type-C (USB 3.2 Gen 2), 4 × USB Type-A (USB 3.2 Gen 2), 1 × RJ-45 (2.5G Ethernet) and 1 × 3.5mm TRRS (Headset with Mic).
What kinds of ports does the Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) have?
By connector family, the Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) has 6 USB, 3 Thunderbolt, 2 DisplayPort, 1 HDMI, 1 Network and 1 Audio.
How many USB ports does the Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) have?
The Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) has 6 USB ports: 2 × USB Type-C (USB 3.2 Gen 2) and 4 × USB Type-A (USB 3.2 Gen 2). It also has 3 Thunderbolt ports (3 × Thunderbolt 4 (USB-C)), which use the USB-C connector shape.
What video connections does the Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) have?
The Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) has 7 ports that can carry video: 3 × Thunderbolt 4 (USB-C), 2 × DisplayPort 1.4, 1 × HDMI 2.1 (Type A – Standard) and 1 × USB Type-C (USB 3.2 Gen 2). Its Thunderbolt 4 (USB-C) and USB Type-C (USB 3.2 Gen 2) ports support DisplayPort Alt Mode, so video travels over the USB-C connector itself with a suitable cable or adapter.
How is the Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) powered?
The Dell Pro Thunderbolt 4 Dock WD25TB4 (2024) takes power over 3 × Thunderbolt 4 (USB-C), 2 × USB Type-C (USB 3.2 Gen 2) and 4 × USB Type-A (USB 3.2 Gen 2). Thunderbolt 4 (USB-C) carries up to 130 W. Thunderbolt 4 (USB-C) carries up to 15 W. USB Type-C (USB 3.2 Gen 2) carries up to 7 W. USB Type-C (USB 3.2 Gen 2) carries up to 15 W. USB Type-A (USB 3.2 Gen 2) carries up to 4 W.