Latitude 7450 docks: choose Thunderbolt or USB-C, then match power

Which dock options should you consider?

For Dell Latitude 7450 laptop or 2-in-1, start with WD22TB4 or current WD25TB4 / SD25TB4 when Thunderbolt expansion is useful; Dell's current exact-model matrix supports both. WD25 is the simpler current USB-C option with up to 100 W on supported Dell systems, while WD19 / WD19S with its 180 W supply is the clearest supported legacy USB-C reuse path. Match the exact computer first: Dell documents 60 W, 65 W and 100 W USB-C adapter configurations. The lower-power WD19/S 130 W package delivers only 90 W and carries Dell's charging-capacity warning; WD19DC/DCS is supported only as a one-host-cable connection, not its dual-cable workstation mode.

Connect displays and power

Computer cable

Power the exact dock with its matching adapter, then connect one supplied host cable directly to either Thunderbolt 4 port; remove extensions and intermediate hubs.

Displays

Use outputs documented for that dock. Prove one monitor at 1920×1080 60 Hz and its selected input before adding a second or increasing resolution.

Direct comparison

Use the notebook's HDMI 2.1 TMDS port or a direct Thunderbolt video adapter to isolate the monitor and cable from the dock path.

Power

Identify whether this Latitude configuration shipped for 60 W, 65 W or 100 W USB-C power. Verify the Windows charging state; a lit dock does not prove adequate host power.

Go to the documented exact setup

First recovery steps by symptom

Nothing on the dock works

1. Confirm the complete dock model and matching Dell power supply.
2. Disconnect the host cable, power the dock first, then reconnect one cable directly to either Thunderbolt 4 port.
3. Prove one USB accessory before reconnecting displays or network devices.

USB works but a display is blank

1. Reduce the desk to one monitor, select its exact input and begin at 1920×1080 60 Hz.
2. Use one documented output and a known-good cable, then compare the Latitude's direct HDMI output.
3. If direct video works, update the exact Latitude BIOS, graphics and Thunderbolt components plus the exact dock firmware before rebuilding the display set.

Charging is slow or absent

1. Check the computer's 60 W, 65 W or 100 W configuration against the dock package and host-delivery ceiling.
2. Reseat the supplied host cable and temporarily remove high-draw accessories.
3. Compare with the original Dell USB-C adapter; restored charging isolates the dock power path without changing the matrix result.

Still unknown: Dell's matrix establishes dock-family support, not the installed processor and graphics path, exact simultaneous monitor modes, DSC use, EDID, cable quality, mixed refresh rates, firmware state or sleep/wake reliability. The laptop and 2-in-1 share the matrix row, but regional configuration and supplied adapter remain device-specific. No physical Latitude 7450 desk was tested.

Compare documented options · Check screens and power

Applies only to Dell Latitude 7450 laptop or 2-in-1. It does not transfer to Latitude 7440, 7650 or another similarly named chassis. Sources reviewed 20 September 2026. Manufacturer documentation is not a Connect Your Dock hardware test.

Connect this model to your dock

Use the exact dock and power supply named below. These are documentation-based starting arrangements, not hardware tests or a guarantee of combined screen modes.