Best Overall
Dell SD25TB4 Pro Thunderbolt 4 Smart Dock
Our verdict: Thunderbolt 4, 8K display output and a 180W adapter, with Dell power negotiation.
Dell's SD25TB4 Pro is a Thunderbolt 4 dock that supports 8K display output. It includes a 180W power adapter, HDMI, DisplayPort and Thunderbolt cables and a 3-year warranty, and it negotiates power with Dell laptops. It sits in the $200 to $500 bucket.
The 180W adapter is why it ranks first. Most docks cap out around 100W or 130W, which is not enough to charge a workstation-class Dell while it works. Power negotiation also means the laptop reads the dock as a Dell adapter and charges at full speed. Cables in the box save a purchase. It beats the WD22TB4 on power and a longer warranty, and costs more.
Buy it for a Dell laptop that draws a lot of power. The price bucket is the limit.
- Standard
- Thunderbolt 4
- Power adapter
- 180W included
- Display
- Up to 8K output
- Warranty
- 3 years
What we like
- +180W adapter in the box
- +Dell power negotiation
- +8K display output
- +Three-year warranty
Watch out for
- −Highest price bucket here
- −Dell-focused compatibility
- −Large for small desks
Buy it if: Power-hungry Dell laptops that need full-speed charging.
Skip it if: You want to spend under $200.





