KVM Switches

A KVM (keyboard, video, mouse) switch is a hardware device that lets you control multiple computers or servers with a single set of keyboard, video display, and mouse.

Users switch between connected computers without needing separate input devices for each one, typically by pressing a button or using a hotkey. This makes KVM switches useful in data centres and server rooms where space is limited and managing multiple systems is necessary, as well as on multi-computer desks.

RS Hong Kong stocks a range of models, including HDMI, DisplayPort, DVI, and USB KVM switch options in desktop and rack-mount formats and 2-port, 4-port, and 8-port configurations, from RS PRO alongside established brands.

Types of KVM Switches

KVM switches are available in different port counts and video interfaces to suit a range of applications.

DisplayPort KVM Switches

DisplayPort KVM switches have higher bandwidth than HDMI, lower design complexity, and support audio transmission over the same connector. DisplayPort is used across e-sports rigs and in high-quality image and video design and editing work.

These switches share digital video and USB between the connected computers through the DisplayPort connector, letting users share USB peripherals across the systems attached to the switch.

DVI KVM Switches

DVI KVM switches use DVI-compatible monitors and deliver digital video that overcomes the resolution limits of VGA. Models support single or dual link DVI-D or DVI-I and can also offer reverse compatibility with analogue VGA signals through passive or active video converters.

DVI does not carry audio, so a separate audio path is required. DVI KVM switches suit high-performance workstations, broadcast play centres, process monitoring and control, staging labs, and data centres where reliable digital image quality and fast switching of redundant hardware are required.

HDMI KVM Switches

HDMI KVM switches provide HDMI signal switching without affecting video quality, and offer fast switching times with no latency.

They are the most common and most popular KVM interface, carry both video and audio over the same cable, and are widely used across broadcasting, high-end medical imaging, home theatres, interactive digital signage, and industrial automation.

USB KVM Switches

These KVM switches use USB cables for keyboard, video, and mouse connections and support USB peripherals such as printers and external storage. Some models also work with PS/2 connectivity for legacy computers, provide audio sharing between systems, and support wireless peripherals connected through the switch.

Applications of KVM Switches

KVM switches are used across environments where controlling multiple computers from one console improves efficiency and reduces desk clutter.

Data Centre & Server Room Management

Administrators use rack-mounted KVM switches to alternate access between multiple servers from a single console at the rack. KVM-over-IP switches extend this control across a LAN or WAN, allowing administrators to monitor and control servers remotely, including BIOS-level access before the operating system loads.

This enables IT teams to perform firmware updates, remote reboots, and operating system reinstalls without requiring physical access to the machine.

Multi-User & Shared Workstation Environments

A KVM matrix switch allows multiple users to simultaneously access multiple shared computers or servers attached to the switch, enabling cross-functional access to data across teams.

Multiple KVM switches can also be cascaded and combined so that a single keyboard, monitor, and mouse can control up to 256 servers when a matrix configuration is not required.

Broadcasting & Control Room Operations

HDMI KVM switches provide HDMI signal switching without affecting video quality and offer fast switching times with no latency, making them widely used in broadcasting.

In control rooms, each employee has to view multiple computers running multiple operating systems. A KVM switch lets employees switch the screen content at any time while giving managers unified screen display control across the wider system.

A 4-port or 8-port KVM switch allows operators to control multiple connected computers from a single console.

Multi-OS Development & Testing

KVM switches are typically platform-independent and work with computers running different operating systems, including Windows, Linux, and Mac.

In software development environments where multiple computers are used for testing or different development tasks, a KVM switch lets developers switch between machines effortlessly, improving productivity and reducing the clutter on their desks.

Buy KVM Switches from RS Hong Kong

Explore KVM switches for a wide range of computing environments at RS Hong Kong. Our selection includes HDMI, DisplayPort, DVI, and USB KVM switches in 2-port to 8-port configurations from trusted brands including Aten, Trendnet and the RS PRO range.

The product listings clearly outline interface type, port count, maximum resolution, and rack-mount compatibility to help you compare models and choose the right solution. Order online with same-day dispatch on eligible items and free delivery on qualifying orders.

You can also shop hard drives and SD cards to complete your system, and refer to the delivery information page for shipping and delivery timelines before checkout.