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Dell WD22TB4 Review 2026 - Specs, Pros & Cons

7.5 Very Good
Adrian Cel By Adrian Cel

The Dell WD22TB4 is Dell's flagship Thunderbolt 4 docking station, designed primarily for Dell business laptops but compatible with any Thunderbolt 4 or USB-C laptop. What sets the WD22TB4 apart is its modular design: the Thunderbolt host module can be swapped, future-proofing the dock for new connectivity standards. For Dell laptop owners, the dock delivers up to 130W of charging via Dell's proprietary ExpressCharge technology, which can bring a Dell laptop to 80% in about an hour. Non-Dell laptops get up to 90W via standard USB-C Power Delivery. With dual DisplayPort 1.4 and HDMI 2.0 video outputs, the dock comfortably drives two 4K@60Hz displays. The WD22TB4 focuses on the basics (USB ports, video, Ethernet, and power) without extras like card readers or audio jacks. This makes it a lean, enterprise-focused dock that does the core job well. If you work in a Dell ecosystem at home or in the office, the WD22TB4 is a natural pick that integrates directly with Dell's management tools.

Best for Dell

Pros & Cons

What We Like

  • 130W ExpressCharge for Dell laptops, fastest charging in class
  • Modular design with swappable Thunderbolt host module
  • 3-year warranty, longest in this dock category
  • Compact, professional design at 8.1 x 3.5 x 1.1 inches
  • Dual 4K@60Hz native display support
  • No drivers required, plug and play Thunderbolt 4

What Could Be Better

  • No 3.5mm audio jack

    Workaround: Use USB audio adapter or Bluetooth headphones.

  • No SD/microSD card reader

    Workaround: Use an external USB card reader.

  • Non-Dell laptops limited to 90W charging (vs 130W for Dell)
  • macOS not officially supported by Dell

    Workaround: The dock works with Mac, but Dell support won't troubleshoot Mac issues.

  • Fewer total ports than competitors like CalDigit TS4

Display Support

Max Displays: 2
1 display (Single 8K@30Hz via DisplayPort 1.4 (Windows))
7680x4320 @ 30Hz
1 display (Single 5K@60Hz via DisplayPort 1.4)
5120x2880 @ 60Hz
2 displays (Dual 4K@60Hz via DP 1.4 + HDMI 2.0. Mac requires M1 Pro/Max or later.)
3840x2160 @ 60Hz

Ports & Connectivity

USB Ports

1x USB-C 3.2
1x USB-C 4.0 15W
3x USB-A 3.2
1x USB-A 2.0

Video Outputs

2x DisplayPort 1.4
1x HDMI 2.0

Network

1x Ethernet (1 Gbps)

Full Specifications

General
Manufacturer Dell
Model WD22TB4
Release Date 2022-05
MSRP $319.99
Connectivity
Host Connection Thunderbolt 4
Max Data Rate 40 Gbps
Driver Required No (native)
Display Output
Max Displays 2
1x Display 7680x4320 @ 30Hz (Single 8K@30Hz via DisplayPort 1.4 (Windows))
1x Display 5120x2880 @ 60Hz (Single 5K@60Hz via DisplayPort 1.4)
2x Display 3840x2160 @ 60Hz (Dual 4K@60Hz via DP 1.4 + HDMI 2.0. Mac requires M1 Pro/Max or later.)
Ports (9+ total)
USB-C 3.2 1x
USB-C 4.0 1x (15W)
USB-A 3.2 3x
USB-A 2.0 1x
DisplayPort 1.4 2x
HDMI 2.0 1x
Ethernet (RJ45) 1x 1 Gbps
Power
Power Input DC-barrel
Laptop Charging Up to 90W

Compatibility

Windows (10+)

Full support. 130W charging available for Dell laptops. Dell Dock Manager available.

macOS (11.0 (Big Sur)+)

Works but not officially supported by Dell. Single display on base M1/M2/M3 Macs. Limited to 90W PD charging.

ChromeOS

Supported on Thunderbolt-equipped Chromebooks.

Linux

Works with most distributions. No Dell management tools available.

Known Issues

M1/M2/M3 base MacBook Air/Pro

Limited to single external display

Non-Dell laptops

No 130W ExpressCharge

7.5 /10

Our Verdict

Very Good

The Dell WD22TB4 is a strong enterprise-grade Thunderbolt 4 dock that works best when paired with Dell laptops. The 130W ExpressCharge capability is its headline feature. No other dock charges Dell laptops this fast. The modular design is forward-thinking, and the 3-year warranty shows Dell's confidence in the product. Build quality is solid, and the compact form factor fits well on any office desk. For non-Dell laptop users, the value is less clear. The 90W standard USB-C PD is respectable but not class-leading, and the lack of an audio jack, SD card reader, and limited USB-C downstream ports means you pay a premium for fewer features compared to the CalDigit TS4. macOS compatibility works but with caveats: Dell does not officially support Mac, and you will not get Dell's management software. If you are in a Dell-centric environment, the WD22TB4 is the obvious pick. If you are platform-agnostic or a Mac user, consider the CalDigit TS4 for a more complete port selection.

Available at Amazon

Frequently Asked Questions

Does the Dell WD22TB4 work with MacBook?
Yes, the WD22TB4 works with MacBooks via Thunderbolt 4, but Dell doesn't officially support it. Basic functionality (displays, USB, Ethernet, charging at 90W) works fine. Dual display requires M1 Pro/Max or later. Dell technical support won't troubleshoot Mac-specific issues.
How much power does the Dell WD22TB4 deliver?
For Dell laptops, the WD22TB4 delivers up to 130W via ExpressCharge, which can charge a Dell laptop to 80% in about an hour. For non-Dell laptops, it provides up to 90W via standard USB-C Power Delivery.
Does the Dell WD22TB4 have an audio jack?
No, the WD22TB4 does not include a 3.5mm audio jack. If you need wired audio, you'll need a separate USB audio adapter. This is one of the dock's main limitations compared to competitors.
What makes the Dell WD22TB4 modular?
The WD22TB4 has a detachable host module that contains the Thunderbolt controller. Dell designed this so the module can be upgraded to newer connectivity standards (like Thunderbolt 5) without replacing the entire dock base. The base retains all the downstream ports.

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