The ICUE Infinity is certainly an attractive monolith, and even on cursory inspection is a distinct cut above the already decent-looking ONYXIA II chassis we were treated to in our last system review. Having recently reviewed the Corsair 4000D we weren't altogether surprised of course, but it’s notable that you still have the wow-factor despite this being a reasonably priced mid-tower enclosure.

Both the tempered glass front facia and side panel have a smoky tint that will very slightly cut the glare of internal LEDs, particularly those not part of the diffuse RGB bands on both the RAM and fans.



The 4000X’s air intakes thin slits are on either side of the glass facia. The channel narrows behind the facia such that the two intakes are only 0.5cm wide by 40cm high, greatly restricting the air even three 120mm fans can draw. This is likely the system’s major restriction when it comes to overclocking, and if preferred the airflow-optimised CORSAIR 4000D (with perforated front facia) can be chosen instead.

A modest I/O panel adorns the top of the 4000X, featuring a single USB 3.0, USB Type-C and combined headphone/mic port. Either side of this are the power and reset buttons, the former of which is illuminated. This location is ideal if the case sits on the floor or small pedestal, but also convenient if sat on a desk.

The rest of the roof is dominated by a mesh panel for exhausted air. A magnetic dust filter sits on it which is trivial to remove and clean.



The rear I/O is exactly as basic as you should expect. MSI’s Z490-A Pro is a board with only the essential features, and you'll only be treated to a handful of USB ports, audio, a single PS2 combo port, and the HDMI and Displayport that you’d be unable to use. One silver lining is the USB Type-C port.