People sharing a desk between work and personal laptops
If both computers use the same monitors, keyboard, mouse and webcam, decide whether you need to switch the whole desk or simply connect the main laptop more conveniently.
Who is this setup for?
Dual-monitor users sharing a keyboard and mouse
Both screens and the USB peripherals need to follow the selected computer. Check the KVM’s video connections, supported display modes and connections to each computer.
Owners of USB-C and older USB-A computers
A hybrid DisplayLink dock can connect a compatible USB-A host to displays, but check software installation and laptop charging separately. StarTech.com’s DK30A2DH, for example, does not charge the laptop.
What should you check first?
Start with what must move between computers when you switch, then check the ports and display modes on both machines.
Dedicated KVM switch
Choose it when: both computers must use the same displays and USB peripherals.
Allow for: separate, compatible video and USB connections from each computer; a KVM does not necessarily charge a laptop.
Monitor with a built-in KVM
Choose it when: you are replacing a display and want the monitor to share a keyboard and mouse between computers.
Allow for: KVM being limited to selected models and for each computer to need suitable video and USB data connections, as Dell’s monitor guidance explains.
Laptop dock
Choose it when: one laptop is the main desk computer and you want to connect its displays and accessories through a dock.
Allow for: a separate way to switch to the second computer. USB-A or DisplayLink docks can also require software and may not charge the host.
| Priority | What to check | Your needs |
|---|---|---|
| Switching | List the displays and USB devices that must follow the active computer. Check whether a KVM shares both monitors, and whether each computer has the required video and USB connections. | I want my keyboard, mouse and webcam to move with the picture, rather than changing a monitor input and reconnecting accessories separately. |
| Host connection | Match the laptop’s stated USB-C, USB4 or Thunderbolt capabilities to the dock’s host requirements. A USB-C-shaped connector alone does not establish video output or charging. | If I connect my main laptop through one cable, I need to know that its port supports the functions I plan to use. |
| Display modes | Compare the intended number of screens, their resolution and refresh rate with the exact dock or switch’s simultaneous-display modes and each computer’s output capabilities. | Both of my monitors need to work in the configuration I use, not just match a product’s single-screen maximum. |
| Laptop power | Check the stated power delivered to the host against the laptop’s accepted input. Dell UK lists different power delivery for Dell and non-Dell systems on its WD25TB4; StarTech.com says its DK30A2DH does not provide laptop charging. | Keeping my laptop’s charger connected is acceptable only if I have planned for another cable and socket. |
| DisplayLink software | For a DisplayLink dock, check operating-system support and whether the required driver can be installed. Synaptics provides DisplayLink graphics software, and StarTech.com’s installation guidance calls for a driver package. | An older USB-A computer could join the desk, but I need a display route that I can actually set up on each computer. |
Mistakes that complicate a shared desk
-
Assuming every USB-C port handles video and charging
The connector shape does not establish a laptop’s display modes or power requirements. Dell UK’s WD25TB4, for example, lists host-specific charging figures and display capabilities.
Compare the laptop manual with the exact dock’s host interface, simultaneous-display modes and power-delivery specification.
-
Buying a dock to solve two-computer switching
A dock can connect one laptop’s desk accessories without moving those accessories to a second computer. A KVM is designed to share connected video and USB devices between hosts.
List everything that must switch together. If that includes both displays and USB peripherals, check a KVM’s connections against both computers.
-
Assuming a hybrid display dock charges the laptop
StarTech.com states that its DK30A2DH connects USB-A or USB-C computers but does not provide USB-C Power Delivery to charge a laptop.
Check charging as a separate specification, including the power accepted by your laptop.
With a dock that does not charge the host, you will still need the laptop’s charger and a socket for it.
-
Overlooking DisplayLink software
A DisplayLink display connection can depend on compatible graphics software, which may be difficult to use on a computer where driver installation is restricted.
Check installation permission and operating-system support before choosing that route. If the software cannot be installed, consider a connection using supported native video output or a compatible hardware KVM.
Relevant brand examples
These examples illustrate different connection routes; a brand’s inclusion does not establish compatibility with your computers.
Dell
Dell UK’s WD25TB4 is a Thunderbolt dock example, while Dell’s monitor guidance explains KVM connections on selected monitors.
- Dell UK specifies up to four displays for the WD25TB4, subject to its stated display modes, and lists 130 W power delivery for Dell systems versus 96 W for non-Dell systems.
- A dock alone does not switch a second computer; monitor KVM capability depends on the selected monitor model and its connections.
StarTech.com
Its examples cover both a hybrid DisplayLink dock and a dedicated two-computer DisplayPort KVM.
- StarTech.com specifies dual 4K 60 Hz DisplayPort sharing for the P2DD46A2-KVM-SWITCH when the computers have the required connections.
- Its DK30A2DH hybrid dock does not provide USB-C laptop charging; the cited KVM requires DisplayPort-enabled computers.
LG
LG’s 49WQ95C-W illustrates a monitor route with a built-in KVM and USB-C power delivery.
- LG lists a 49-inch Dual QHD ultrawide display and 90 W USB-C Power Delivery for this model.
- Its size makes desk space and screen preference important checks; confirm the video and USB data connections needed by both computers.
Anker
Anker UK’s Prime DisplayLink dock is an example of a multi-display dock for a primary computer.
- Anker UK lists triple-display support and 140 W upstream charging for the cited model.
- Anker says the latest DisplayLink driver is required; the dock is not a dedicated switch between two computers.
Joybuy options for the desk
These options cover connections for a main laptop and a monitor for a desk being updated. If both computers must share displays and peripherals, check the switching arrangement separately.
No image available
Targus USB-C Universal Dual HDMI 4K Docking Station, 100W PD Pass-Thru
A docking option for a main laptop with two HDMI-connected monitors. Check the laptop’s supported display modes and charging requirements; sharing the desk with a second computer would need a separate switching arrangement.
No image available
MSI MD272UPSW 27-inch 4K UHD Smart Monitor with Google TV
A monitor option if you are replacing the desk display; its title lists USB-C 65W and Multi-Control. Check how Multi-Control connects the two computers and whether 65W meets your laptop’s charging requirements before relying on either function.
No image available
Baseus Metal Gleam Series II 10-in-1 USB-C Hub, Cosmic Black
For a laptop whose USB-C port supports DisplayPort Alt Mode, the title lists two HDMI outputs, USB connections, RJ45, SD/TF and a USB-C PD port. Check simultaneous HDMI display modes and laptop charging output rather than treating the listed port maxima or PD input as a guarantee for your setup.
No image available
USB-C Hub with 2 HDMI, DP, USB, RJ45, PD, SD/TF and Audio
A multiport connection option for a main USB-C computer. Its title lists two HDMI ports and DisplayPort alongside peripheral connections; check the simultaneous display modes, host compatibility and PD pass-through rating for the laptop and monitors you intend to use.
Common questions
How can I tell whether my laptop will work with a USB-C dock?
Compare the laptop manufacturer’s stated port capabilities with the exact dock’s host requirements, simultaneous-display modes and power delivery. The USB-C connector shape alone does not confirm that the laptop sends video or accepts charging through that port.
Do I need a KVM if my monitor has two inputs?
Not if you only need to change the picture and are happy to use separate peripherals or reconnect them. If the keyboard and mouse must follow the active computer, check a KVM-capable monitor or dedicated switch; Dell’s monitor guidance describes the additional USB-upstream connections needed for shared peripherals.
What does a monitor’s built-in KVM need to share a keyboard and mouse?
Each computer needs a suitable video path and a USB data path to the KVM-equipped monitor. Dell’s setup guidance then connects the shared keyboard and mouse to the monitor’s downstream USB ports; check the exact monitor’s connection instructions before buying cables.
Will a USB-A or DisplayLink dock charge my laptop?
Do not assume it will. StarTech.com explicitly states that its USB-A/USB-C DK30A2DH does not provide USB-C Power Delivery for laptop charging. Check the exact dock’s host-power specification against your laptop’s requirements, and retain its charger where the dock does not charge it.
Does a DisplayLink dock need software?
A DisplayLink connection can require graphics software. Synaptics provides DisplayLink drivers, and StarTech.com’s Windows installation guidance calls for the software package before connecting its dock. Check operating-system support and whether you can install the required software on each computer.