Kensington SD5780T vs SD5760T - Thunderbolt 4 Dock Comparison 2026

Kensington SD5780T vs SD5760T: the short version

The Kensington SD5780T and Kensington SD5760T are close enough on paper that the naming can be misleading. Both are Thunderbolt 4 docks. Both charge a laptop at up to 96W. Both are driverless for core docking features. Both carry Kensington’s three-year limited warranty. Both target the same kind of desk: a Windows or Mac laptop, wired Ethernet, USB accessories, and one or two external displays.

The difference is in the port philosophy. The SD5780T is the more premium dual-display dock. It has one HDMI 2.1 port, two downstream Thunderbolt 4 ports, 2.5 Gbps Ethernet, four USB-A ports, a UHS-II SD reader, TAA compliance, and a strong 8.0 score in our product data. It is the safer pick for most people who want a long-term Thunderbolt 4 dock and are comfortable using a Thunderbolt or USB-C display path for the second monitor.

The SD5760T is more direct. It gives you two HDMI 2.0 ports, one downstream Thunderbolt 4 port, one extra USB-C 3.2 port, four USB-A ports, Gigabit Ethernet, UHS-II SD and microSD readers, and the same 96W laptop charging. If you have two ordinary 4K HDMI monitors, that layout is easy to understand. Plug both displays into HDMI, plug the host cable into the laptop, and you are mostly done.

Our winner is the SD5780T. The higher score, faster Ethernet, HDMI 2.1 support, stronger Thunderbolt accessory layout, and better reliability history in the YAML outweigh the SD5760T’s lower MSRP and dual-HDMI convenience. The SD5760T still has a niche, especially for discounted dual-HDMI Windows setups, but the SD5780T is the dock I would buy first.

If you are still choosing between native Thunderbolt and USB-C docks more broadly, read our USB-C vs Thunderbolt docking stations guide before buying.

Quick specs comparison

Why the SD5780T wins overall

The SD5780T wins because it has fewer weak points. It is not perfect, and the original $399.99 MSRP is high next to many excellent Thunderbolt 4 docks, but the product data gives it the better overall case.

The first advantage is Ethernet. The SD5780T supports 2.5 Gbps wired networking. The SD5760T is limited to 1 Gbps. That will not matter if your router, switch, or office network is still Gigabit, but it matters for NAS transfers, large local backups, media work, and anyone already running 2.5GbE at the desk. Thunderbolt docks tend to stay in service for years. Buying the faster Ethernet port now is a reasonable hedge.

The second advantage is HDMI 2.1. The SD5780T can drive a single 4K display at 120Hz through its HDMI port according to the YAML, while also supporting dual 4K@60Hz through HDMI plus a downstream Thunderbolt 4 port. The SD5760T has two HDMI 2.0 ports, which are simple and useful, but the product data lists them for dual 4K@60Hz rather than 4K@120Hz. If you use a high-refresh 4K monitor, the SD5780T is the better fit.

The third advantage is reliability. This is the part that changes the verdict. The SD5760T product file includes a major con: PCWorld reported repeated display and dock disconnects during testing. The verdict also says the disconnects were specific enough to keep the SD5760T from being an easy recommendation for uptime-sensitive desks. The SD5780T has some caveats too, including occasional Ethernet drops and a community-reported second-monitor issue on some AMD Ryzen laptops using a USB-C to DisplayPort adapter, but its overall product verdict is more positive and its score is higher.

That does not make the SD5760T a bad dock. It does mean the SD5780T is the safer recommendation unless you specifically need two direct HDMI ports and can test the SD5760T during a return window.

Display support and monitor setup

Both docks are native Thunderbolt 4 docks, so neither one uses DisplayLink to cheat around host display limits. That is good for image quality, latency, and driver simplicity. It also means the laptop still matters.

The SD5780T supports a single 8K@60Hz display through a downstream Thunderbolt 4 port, a single 4K@120Hz display through HDMI 2.1, dual 4K@60Hz through HDMI 2.1 plus one Thunderbolt 4 downstream port, and dual 6K@60Hz on compatible MacBook Pro or Max systems. The YAML notes that base M1, M2, and M3 MacBooks are limited to one external display. USB-C only laptops are also limited compared with proper Thunderbolt or USB4 hosts.

The SD5760T supports a single 8K@60Hz display through its downstream Thunderbolt 4 port when DSC is available, a single 4K@60Hz display through HDMI or USB-C Alt Mode hosts, dual 4K@60Hz through its two HDMI 2.0 ports on Thunderbolt 4, Thunderbolt 3, or USB4 hosts, and dual 6K@60Hz on listed MacBook Pro or Max chipsets. Its base M1 and M2 MacBook limitation is the same practical issue: the dock cannot create extra native display pipelines the Mac does not have.

If your desk has two HDMI 2.0 monitors and you do not want adapters, the SD5760T wins this one category. The dual HDMI layout is the cleanest path for that exact setup. If your main display is 4K@120Hz, or if you want one HDMI monitor plus a Thunderbolt or USB-C monitor, the SD5780T is better. Its HDMI 2.1 port gives it more headroom for a modern single display, while the two downstream Thunderbolt 4 ports give you more flexibility for the second screen or high-speed accessories.

For a broader list of dual-display options, see our best docking stations for dual monitors guide.

Ports and everyday desk use

The SD5780T has 11 ports in the product data: one host Thunderbolt 4 connection, two downstream Thunderbolt 4 ports, one HDMI 2.1 port, four USB-A 3.2 ports, 2.5GbE, a UHS-II SD reader, and a 3.5mm combo audio jack. The host cable is 1m. The rear-heavy layout makes sense if the dock stays on a desk with monitors, Ethernet, and storage attached most of the time.

The SD5760T is listed as a 13-in-1 dock. It has two HDMI 2.0 ports, one downstream Thunderbolt 4 port, one USB-C 3.2 port, four USB-A ports split across 5 Gbps and 10 Gbps speeds in the YAML, Gigabit Ethernet, a 3.5mm combo jack, and UHS-II SD plus microSD readers. It includes a 0.8m Thunderbolt 4 cable.

There is no clean port-count winner because the layouts are built for different desks. The SD5760T has the more convenient video ports for two HDMI monitors, and it has the better media-card setup because it includes microSD. That matters for camera, drone, action camera, and handheld-console users who do not want a separate adapter.

The SD5780T has the more valuable premium ports. 2.5GbE is a real upgrade over Gigabit. HDMI 2.1 is a real upgrade over HDMI 2.0 for a single high-refresh display. Two downstream Thunderbolt 4 ports are more useful than one if you have a fast external SSD, a USB-C monitor, or a Thunderbolt accessory chain.

For a keyboard, mouse, webcam, headset, Ethernet cable, and one or two monitors, either dock has enough basic connectivity. The split comes when you add faster network storage, 4K@120Hz, or Thunderbolt accessories. That is where the SD5780T pulls ahead.

Power delivery is a tie

Both docks deliver up to 96W to the host laptop. That keeps the comparison simple. The SD5780T product data lists 96W through the Thunderbolt 4 cable. The SD5760T product data also lists 96W dynamic Power Delivery.

For most 13-inch, 14-inch, and many 15 to 16-inch productivity laptops, 96W is enough. It should cover common ultrabooks, MacBook Pro models during normal office work, and many business laptops. If you run a high-power mobile workstation under sustained CPU and GPU load, either dock may be below the laptop’s original charger. That is not a reason to pick one Kensington over the other because the wattage is the same.

The accessory charging picture is different. The SD5780T has two downstream Thunderbolt 4 ports with 15W each and a front USB-A port rated for 7.5W in the YAML. The SD5760T has one downstream Thunderbolt 4 port rated at 15W, one USB-C 3.2 port at 7.5W, and USB-A ports at 4.5W. Neither product file makes either dock look like a phone fast charger. Treat them as laptop docks first and keep a dedicated charger nearby if phone or tablet charging speed matters.

Compatibility: same foundation, different caveats

Both docks are driverless for normal use. The SD5780T is plug and play on Windows 10 or later and macOS 11 or later. Kensington DockWorks is optional for Windows network management features such as MAC address passthrough and automatic WiFi management. The SD5760T has the same core driver story, with optional DockWorks for network management.

The Mac caveat is familiar. The SD5780T YAML says base M1, M2, and M3 MacBooks are limited to one external display, while dual display requires a Pro, Max, or later chip that supports it. The SD5760T YAML says base M1 and M2 MacBooks are limited to one external display, and USB-C Alt Mode laptops are limited to one external display. In plain language: check your laptop’s display support before blaming the dock.

The SD5780T has one specific compatibility note worth calling out. The product file mentions some AMD Ryzen laptops where a second monitor may not work through a Thunderbolt downstream port with a USB-C to DisplayPort adapter. The suggested workaround is to use a native Thunderbolt 4 cable to a monitor with USB-C or Thunderbolt input, or a certified active Thunderbolt-to-HDMI 2.0 cable.

The SD5760T has the more worrying known incompatibility: systems sensitive to Thunderbolt dock stability may see display or dock disconnects. The YAML ties that to PCWorld testing of two units. If you are buying for a desk where Teams calls, external monitors, and Ethernet cannot drop, that matters more than the SD5760T’s cleaner HDMI layout.

Price and value

At MSRP, the SD5760T looks much cheaper: $239.99 versus $399.99 for the SD5780T. If both are sold at those prices and your only requirement is two HDMI 2.0 monitors plus 96W charging, the SD5760T has a real value argument.

The problem is that value is not just a price tag. The SD5780T gives you 2.5GbE, HDMI 2.1, a second downstream Thunderbolt 4 port, TAA compliance, and the higher product score. It also avoids the SD5760T’s major reliability warning in our product data. If the dock is for paid work, the safer product can be the better value even at a higher price.

The SD5760T’s best value case is a discounted purchase from a retailer with easy returns. The YAML verdict says it is still worth considering if you find it at a strong discount and can test it with your exact laptop and monitors. That is the right way to think about it. Buy it because the dual-HDMI layout solves a specific problem at the right price, not because it is the better all-around dock.

The SD5780T’s best value case is a desk that will benefit from its premium features. If your network supports 2.5GbE, if your main monitor can use HDMI 2.1, if you need Thunderbolt accessories, or if the dock is going into an office environment where lock slots, TAA compliance, and the three-year warranty matter, the higher price is easier to justify.

Choose the Kensington SD5780T if

• You want the better overall dock based on the product scores.
• You need 2.5 Gbps Ethernet for faster local network transfers.
• You use, or may buy, a 4K@120Hz monitor.
• You want two downstream Thunderbolt 4 ports for displays, storage, or accessories.
• You prefer HDMI 2.1 plus Thunderbolt flexibility over two fixed HDMI 2.0 outputs.
• You are buying for an office environment where TAA compliance, lock slots, DockWorks, and a three-year warranty matter.
• You want to avoid the SD5760T’s documented disconnect caveat.

Choose the Kensington SD5760T if

• You have two HDMI 2.0 monitors and want the simplest possible cabling.
• You want the lower official MSRP.
• You need both SD and microSD UHS-II readers built into the dock.
• Gigabit Ethernet is enough for your network.
• You do not need a 4K@120Hz HDMI path.
• You can buy from a retailer with easy returns and test the dock with your exact laptop, monitors, and video-call workload.

Verdict: SD5780T for most desks, SD5760T for a specific dual-HDMI setup

The Kensington SD5780T is the better Thunderbolt 4 dock for most buyers. It scores higher, has faster Ethernet, supports HDMI 2.1, provides two downstream Thunderbolt 4 ports, and has a stronger overall reliability story in the product data. It is the more expensive dock, but it also has the premium features that make a dock feel useful for more than one laptop generation.

The SD5760T is more tempting than the score suggests if your desk is simple: two HDMI monitors, no 2.5GbE network, no Thunderbolt storage, and a strong discount. Its SD plus microSD card readers are also a practical advantage. I would still treat it as a buy-and-test dock because the YAML includes a major disconnect warning from third-party testing.

So the recommendation is straightforward. Choose the SD5780T if you want the safer, more capable Kensington Thunderbolt 4 dock. Choose the SD5760T if two direct HDMI outputs and a lower price matter more than Ethernet speed, HDMI 2.1, Thunderbolt expansion, and the reliability caveat.

For individual specs and caveats, read the full Kensington SD5780T review and Kensington SD5760T review. If you are still comparing across brands, the best Thunderbolt 4 docks page is the better next stop.