Kensington SD4760P vs SD4780P: DisplayLink Dock Comparison

Kensington SD4760P vs SD4780P at a glance

The Kensington SD4760P and Kensington SD4780P are both DisplayLink docks for people who need more flexibility than a basic USB-C hub provides. Each has Gigabit Ethernet, a combo audio jack, six USB ports, an included power supply, a three-year limited warranty, and up to 100W USB-C Power Delivery for a compatible USB-C laptop. Both also ask Windows and macOS users to install DisplayLink software before relying on external monitors.

That shared foundation makes the buying decision fairly narrow. The SD4760P is an HDMI-only triple-display dock aimed at an office setup with one 4K screen at 30Hz and two 1080p side screens at 60Hz. The SD4780P is a dual-display dock with two HDMI and two DisplayPort outputs. It can run two 4K displays at 60Hz, but those four sockets are choices for two active displays, not support for four monitors.

The SD4780P wins overall because dual 4K at 60Hz, 10Gbps host connectivity, and HDMI plus DisplayPort options make it the more flexible dock for a typical two-monitor desk. The SD4760P still has a real use case. If you already own three HDMI office monitors and accept one 4K screen at 30Hz with two 1080p screens, it provides the extra display without paying for a higher-end dock.

For a wider look at this software-driven display category, read our DisplayLink docking stations explained guide. It covers why a DisplayLink dock can add screens to a MacBook or a laptop with limited native display support, along with the tradeoffs that come with it.

Quick specs comparison

The matching scores are useful context. Kensington built these docks for different desks, not as a simple good-better replacement pair. The SD4760P favors three HDMI displays and a lower-cost office layout. The SD4780P favors two sharper, smoother 4K displays and support for a more varied laptop fleet.

Display setup: three screens or two proper 4K screens

Display support is the main difference between these docks, and the product names alone do not make it obvious.

The SD4760P has three HDMI outputs. HDMI 1 uses USB-C DisplayPort Alt Mode, while HDMI 2 and HDMI 3 use DisplayLink. Kensington documents its top three-screen arrangement as one 4K display at 30Hz plus two 1080p displays at 60Hz. That can work well for an office dashboard, a support desk, spreadsheet work, browser-heavy research, email, and calls. A 4K main screen gives you plenty of room for a document or application window, and the two 1080p side screens can hold chat, calendar, tickets, or reference material.

There is a clear ceiling, though. The SD4760P is not a triple-4K dock. Its 4K mode is also limited to 30Hz. That is usable for static productivity work, but text scrolling and pointer movement look less fluid than on a 60Hz display. It makes little sense for a desk built around a pair of modern 4K monitors, and it is not the right dock for gaming, animation-heavy work, protected streaming, or color-sensitive editing.

The SD4780P handles fewer monitors but gives the two it supports much better headroom. Kensington lists single or dual 4K output at 60Hz through DisplayLink. Its two HDMI 2.0 and two DisplayPort++ 1.2 ports are connection options: use any two outputs, not all four at once. That layout is useful in a shared office where one desk has HDMI displays and another has DisplayPort monitors. It also reduces the chance that a monitor swap turns into an adapter purchase.

For most people buying a dock for a pair of 4K displays, the SD4780P is the straightforward answer. It gives the desired resolution and refresh rate on both screens. Choose the SD4760P only when the third display changes how you work and two 1080p side panels are enough.

If your goal is simply to add monitors to a laptop, our best docking stations for dual monitors page is a useful next stop. It includes native USB-C, Thunderbolt, and DisplayLink alternatives for different monitor counts.

Ports and desk peripherals

The SD4760P has a very simple port philosophy. Its video side is HDMI only, which is convenient if your existing monitors already use HDMI. It supplies six USB-A 3.2 ports, Gigabit Ethernet, and a 3.5mm combo audio jack. There are no downstream USB-C ports, no DisplayPort outputs, and no card readers. That is enough for a keyboard, mouse, webcam, headset, Ethernet connection, and several ordinary USB accessories. It is not built to be an SSD workstation.

The SD4780P has more connector variety. Along with its HDMI and DisplayPort choices, it has one USB-C 3.2 port with 15W power, one USB-A 3.2 port with 12W power, and four USB-A 3.1 ports. The total remains six USB ports, but the USB-C port is more convenient for a newer phone, accessory, or USB-C peripheral. The SD4780P also runs from a 10Gbps USB-C host connection, whereas the SD4760P is a 5Gbps-class USB-C dock.

Neither model replaces a Thunderbolt dock for demanding storage workflows. Both have Gigabit Ethernet rather than 2.5GbE, and both use DisplayLink for their monitor output. Connect a fast external SSD directly to the laptop if transfer speed matters. For routine office peripherals, each dock is adequately equipped.

The video sockets may matter more than the total number of USB ports. The SD4760P is convenient for three HDMI displays without adapters. The SD4780P is more adaptable for two monitors because it offers both HDMI and DisplayPort. A desk with two DisplayPort monitors should choose the SD4780P rather than turning the SD4760P into an adapter chain.

Charging and mixed laptop fleets

Both docks support up to 100W USB-C Power Delivery for a compatible USB-C laptop. That is a strong common point. The dock can power the laptop while also serving the display and peripheral setup, so a normal USB-C workstation can use one host cable for its desk connection.

The SD4780P goes further on host compatibility. Kensington includes a 1m USB-C host cable with a USB-A adapter, and the dock can work with USB-C, USB-A, Thunderbolt 3, and Thunderbolt 4 hosts. That is valuable in a mixed fleet where a newer USB-C laptop shares a desk with an older USB-A system. The compromise is charging: USB-A cannot deliver USB-C Power Delivery through that data connection. A USB-A laptop needs its own charger or Kensington’s optional K38310NA power splitter.

The SD4760P is the cleaner choice when every computer already connects over USB-C. It also supports USB4, Thunderbolt, and Apple Silicon MacBook hosts through that USB-C connection, but it does not offer the older USB-A fallback. Its design is easier to explain because there is no special USB-A charging exception.

For Mac users, both docks depend on the same DisplayLink workflow. Install DisplayLink Manager, approve the required screen recording permission, then reconnect the dock if displays do not appear. That software path can help a MacBook run office displays beyond its native limit, but it remains a software-assisted solution. A native Thunderbolt dock is a better fit for people who do not want the driver dependency.

Driver requirement and real-world limitations

The SD4760P and SD4780P share the big DisplayLink caveat. Windows and macOS users need the current DisplayLink driver for normal multi-monitor use. On the SD4760P, HDMI 2 and HDMI 3 need it, while HDMI 1 can use USB-C Alt Mode. On the SD4780P, DisplayLink drives the external display output.

That is not automatically a dealbreaker. DisplayLink is useful for productivity desks, shared hot desks, admin work, calls, browser tabs, and spreadsheets. It is why these docks can support a broad collection of laptop types, including Macs and older USB-A machines in the SD4780P’s case. Still, it is worth checking with IT before buying one for a managed fleet. A company that cannot install or update DisplayLink software should use a native USB-C Alt Mode or Thunderbolt dock instead.

Both docks are a poor match for low-latency games, HDCP-protected streaming, and color-critical visual work. That limitation comes directly from the software-assisted display path, not from a missing cable or a hidden setting. Buyers looking for a driverless display setup should start with our USB-C vs Thunderbolt docking stations guide and choose the connection class before comparing individual models.

ChromeOS support needs a closer look as well. Kensington lists ChromeOS 114 or newer for the SD4760P. The SD4780P lists ChromeOS 44 or newer and notes that ChromeOS R51 and later include DisplayLink support without a separate driver package. Check your organization’s ChromeOS version and external-display policy before treating either listing as a universal guarantee.

Value and support

Kensington gives both docks a three-year limited warranty, which is longer than the coverage found on many generic DisplayLink docks. They also include the power hardware needed for the dock itself. That makes the choice less about warranty length and more about whether the display arrangement fits your actual monitors.

The SD4760P has a listed MSRP of $149.99, and its product data positions it as a budget triple-display option. Its public feedback is still limited, with an Amazon rating of 4.1 from 58 global ratings recorded during its review. The available feedback liked setup, value, and the ability to run three monitors, while other feedback mentioned packaging and an HDMI-port failure report. Test all three outputs during the retailer return window.

The SD4780P is an older universal dock with more public feedback, but that feedback is mixed too. Its product data records a 3.9-star Amazon rating from 75 reviews and notes that ReviewMeta indexed 139 reviews for the same ASIN. The SD4780P has a better physical connection mix, but it is not a risk-free substitute for a native dock. Its value improves when you need USB-A host support, dual 4K at 60Hz, or DisplayPort without adapters.

Verdict: choose the SD4780P for a modern dual-monitor desk

The Kensington SD4780P is the better overall choice between these two docks. It supports dual 4K displays at 60Hz, works with HDMI and DisplayPort monitors, provides a USB-C peripheral port, and can serve USB-A hosts as well as USB-C and Thunderbolt laptops. Those advantages make it easier to keep when the laptop or monitor mix changes.

The SD4760P wins only in a specific but valid setup: three HDMI office monitors, with one 4K panel at 30Hz and two 1080p panels at 60Hz. If that is the desk you already have, the third display is more useful than the SD4780P’s higher refresh and connector flexibility.

Choose the Kensington SD4780P if:

• You want two 4K monitors running at 60Hz.
• Your monitors use a mix of HDMI and DisplayPort.
• You need a dock that can also work with USB-A laptops.
• You want a 10Gbps USB-C host connection and a downstream USB-C port.
• Your desk is primarily for two-monitor office work rather than three lower-resolution screens.

Choose the Kensington SD4760P if:

• You need three external office displays from one USB-C connection.
• Your monitors are HDMI only.
• One 4K screen at 30Hz plus two 1080p screens at 60Hz suits your work.
• Every laptop on the desk already uses USB-C for its connection and charging.
• You want the simpler Kensington triple-display option with the listed $149.99 MSRP.

Read the full Kensington SD4760P review and Kensington SD4780P review before deciding. The right answer depends more on your monitor count and cables than on the small difference in model numbers.