AIO coolers evolve into miniature computers with smartphone-sized displays

All-in-one (AIO) liquid coolers are becoming far more sophisticated than the simple cooling devices that once sat quietly inside desktop computers. New models entering the market are increasingly incorporating large colour displays, advanced monitoring functions and multimedia features, transforming them into miniature computing platforms in their own right.

Some of the latest products feature screens that approach the size of modern smartphones. In several cases, the displays attached to CPU coolers are larger than the 4.7-inch screen used in Apple’s iPhone SE. As manufacturers compete to attract PC enthusiasts, cooling hardware is now evolving beyond thermal performance and into the realm of visual customisation and entertainment.

Cooling systems gain built-in computing power

One of the most notable examples comes from ASUS, which recently introduced its ROG Strix SLC IV liquid cooler. The product includes a detachable 6.67-inch curved AMOLED display with a resolution of 2400 x 1080 pixels. The company also offers the ROG Strix LC IV, which features a smaller 3.5-inch IPS display while maintaining many of the same customisation options.

Supporting these large displays requires significantly more processing capability than traditional cooling hardware. The screens are designed to handle graphics, animations, system monitoring information and user interactions. To achieve this, manufacturers are integrating microcontrollers, or MCUs, into their products.

An MCU functions as a complete computer on a single chip. It includes its own processor, memory, storage, and I/O capabilities, allowing it to operate independently within a larger device. This enables cooling systems to manage display functions, monitor system information and process multimedia content without relying entirely on the host computer’s central processor.

The contrast with earlier generations of cooling hardware is considerable. Around two decades ago, a premium CPU cooler typically consisted of a metal heatsink paired with one or two fans. Modern flagship AIO coolers now include integrated MCUs, wireless connectivity, RGB lighting controllers, dedicated software platforms and support for media playback.

As these features become more common, cooling hardware is increasingly resembling consumer electronics products rather than traditional PC components. The result is a growing level of complexity within devices whose original purpose was to remove heat from processors.

Manufacturers compete through design and display features

The trend extends well beyond ASUS. Several manufacturers are introducing products that place a strong emphasis on visual presentation and customisation alongside cooling performance.

JONSBO’s TM-280, for example, includes a 3.95-inch IPS display capable of showing hardware statistics, animated GIFs, images and MP4 video files. Meanwhile, ASRock’s Challenger Digital series features integrated 3-inch LCD panels that display processor temperatures, clock speeds and pump status information.

Antec has taken a similar approach with its Vortex View 360. The cooler incorporates a rotatable 5-inch IPS display with a 1280 x 720-pixel resolution, providing users with another platform for displaying system information or personalised content.

The increasing focus on displays reflects a broader shift within the enthusiast PC market. Manufacturers are no longer competing solely on cooling efficiency. Instead, they are investing heavily in aesthetics, customisation tools and software ecosystems designed to help users personalise their systems.

This shift has also contributed to rising prices. Components that were once relatively straightforward now contain multiple technologies, including display controllers, wireless communication systems and specialised software. These additions allow companies to position their products as premium offerings aimed at enthusiasts building showcase PCs.

As a result, the modern AIO cooler has become one of the most feature-rich components inside a desktop computer, offering capabilities that extend well beyond its original purpose.

Thermal performance remains important despite added complexity

Although visual features attract much of the attention, manufacturers continue to improve cooling performance through more traditional engineering developments. Faster pumps, larger radiators and more efficient fan designs remain key selling points across the sector.

ASUS, for instance, includes a dedicated cooling fan for voltage regulator modules (VRMs) on certain models. JONSBO rates its TM-280 cooler to handle processors with thermal loads of up to 285 watts TDP, demonstrating that thermal capability remains a significant consideration.

However, the most visible innovations increasingly revolve around displays, lighting effects and software integration. MSI recently unveiled a fabric-covered liquid cooler that conceals a display beneath its outer surface, highlighting how product appearance is becoming a major differentiator in the market.

Many of these products now rely on dedicated software suites, internal USB connections, controller hubs and proprietary communication systems. ASUS’s wireless display technology, for example, uses a motherboard connection that carries power, control signals and data through specialised contact points.

For enthusiasts, these developments provide additional opportunities to personalise their systems and create visually striking builds. Animated graphics, real-time performance data and customised media displays have become attractive features for users who enjoy showcasing their hardware.

At the same time, some consumers may question whether such additions are necessary for components whose primary function remains cooling a processor. As manufacturers continue to add displays and advanced features, the debate over practicality versus visual appeal is likely to continue.