Kensington SD5700T vs SD5780T - Thunderbolt 4 Dock Comparison 2026

Kensington SD5700T vs SD5780T: Old Guard vs Smarter Successor

The Kensington SD5700T and SD5780T are closely related Thunderbolt 4 docks aimed at office users who want a dependable single-cable setup with long warranty coverage and enterprise-friendly features. Both offer 11 ports, dual 4K display support, a UHS-II SD card reader, a 3.5mm combo jack, and a three-year warranty.

The difference is in how Kensington allocated those ports. The older Kensington SD5700T prioritizes three downstream Thunderbolt 4 ports, Chromebook certification, and built-in speakers. The newer Kensington SD5780T makes the more practical trade for most buyers: one of those downstream TB4 ports is replaced with HDMI 2.1, while charging rises from 90W to 96W and Ethernet jumps from 1 Gbps to 2.5 Gbps.

The short verdict: The Kensington SD5780T is the better dock for most people. It is easier to use with standard monitors, charges laptops a bit faster, and offers meaningfully faster wired networking. The SD5700T still has a place if you care more about three downstream Thunderbolt 4 ports, built-in speakers, or ChromeOS certification.

Quick Specs Comparison

Port Layout and Everyday Usability

This is the most important difference in the entire comparison.

Kensington SD5700T

The SD5700T gives you three downstream Thunderbolt 4 ports, three USB-A 3.2 ports, one USB-A 2.0 port, Gigabit Ethernet, a UHS-II SD reader, and a 3.5mm combo jack. That makes it a strong fit for users who plan to daisy-chain Thunderbolt devices or connect multiple USB-C accessories directly.

Its weakness is simple: there are no dedicated HDMI or DisplayPort outputs. If you want to hook up monitors, you need adapters or USB-C display cables for every screen.

Kensington SD5780T

The SD5780T keeps the same general 11-port class, but reallocates one of the SD5700T’s TB4 downstream ports into a native HDMI 2.1 output. You still get two downstream Thunderbolt 4 ports, four USB-A ports total, a UHS-II SD reader, a 3.5mm combo jack, and Ethernet.

For most people, this is the smarter layout. One monitor can plug in directly over HDMI, while the remaining TB4 ports are free for a second display, storage, or other peripherals.

Port usability winner: Kensington SD5780T. The SD5700T has one extra TB4 downstream port, but the SD5780T’s HDMI 2.1 makes real-world desk setups easier.

Display Support

Both docks support up to dual 4K@60Hz and both can reach single 8K@60Hz on compatible systems. Both also share the same major Mac limitation: base M1, M2, and M3 Macs are limited to one external display because of Apple hardware restrictions.

The SD5780T has two clear display advantages in the YAML data:

• It includes HDMI 2.1 for direct display output
• It supports single 4K@120Hz via HDMI 2.1
• Its configurations also list dual 6K@60Hz on compatible MacBook Pro systems with Pro or Max chips and DSC-capable monitors

The SD5700T can still be excellent for dual 4K, but every display connection depends on the downstream TB4 ports and adapters.

Display winner: Kensington SD5780T. Similar core dual-4K capability, but better convenience and stronger high-end display flexibility.

Charging and Networking

The SD5780T improves two practical specs at once.

Power Delivery

• SD5700T: 90W host charging
• SD5780T: 96W host charging

That is not a massive jump, but it gives the newer dock a little more headroom for larger laptops.

Ethernet

• SD5700T: 1 Gbps Ethernet
• SD5780T: 2.5 Gbps Ethernet

This is the more meaningful upgrade. If you move large files across a NAS, work on a fast wired office network, or simply want a more future-proof dock, 2.5GbE is a real benefit.

Charging and networking winner: Kensington SD5780T. Slightly more power, much faster Ethernet.

Special Features and Trade-Offs

The older SD5700T is not just a worse SD5780T. It does retain a few notable advantages.

Reasons to prefer the SD5700T

• Three downstream Thunderbolt 4 ports instead of two
• Built-in speakers, which are rare on docks
• Official Works With Chromebook certification
• Dual Kensington lock slots

Reasons to prefer the SD5780T

• HDMI 2.1 without requiring adapters
• 2.5 Gbps Ethernet
• 96W charging
• Dual Kensington lock slots and TAA compliance
• Optional DockWorks network management features

The SD5700T is the more niche pick for users who truly need maximum Thunderbolt daisy-chaining or ChromeOS-focused validation. The SD5780T is the more balanced mainstream choice.

Price and Value

At original MSRP, the SD5700T is actually cheaper at $369.99 versus $399.99 for the SD5780T. On paper, that makes the older model look appealing.

But the SD5780T earns its small premium with a better mix of modern features: HDMI 2.1, 2.5GbE, and slightly higher charging power. Its review score is also slightly higher at 8.0/10 versus 7.8/10.

If you specifically need the SD5700T’s extra Thunderbolt port or Chromebook certification, the older model still offers solid value. Otherwise, the SD5780T justifies the price gap more convincingly.

Value winner: Slight edge to Kensington SD5780T. The SD5700T may cost less, but the SD5780T’s upgrades are more useful for most buyers.

Verdict: The SD5780T Is the Better Kensington Dock for Most Setups

The Kensington SD5780T wins because it solves the biggest usability flaw of the SD5700T. Native HDMI 2.1 means fewer adapters, easier monitor setup, and more flexibility right out of the box. Add 96W charging and 2.5GbE, and the newer dock becomes the more complete product.

The Kensington SD5700T is still worth considering if your workflow revolves around multiple Thunderbolt accessories, ChromeOS compatibility, or you simply want built-in speakers on the dock.

Choose the Kensington SD5700T if:

• You want three downstream Thunderbolt 4 ports
• You prefer a dock with built-in speakers
• You need Works With Chromebook certification
• You are comfortable using adapters for all external displays

Choose the Kensington SD5780T if:

• You want the better all-around dock for a Windows or Mac desk setup
• You want native HDMI 2.1 for easier monitor connectivity
• You want 2.5 Gbps Ethernet instead of Gigabit
• You want slightly higher 96W charging
• You prefer the higher-scoring model in our database

For deeper product-level detail, read our full Kensington SD5700T review and Kensington SD5780T review.