Phanteks EX5 splits your PC into four chambers — but can it deliver?
Phanteks has launched the EX5 at Computex 2026, a mid-tower PC case that separates major components into isolated chambers rather than dumping them into a single shared airspace. Three versions are available now — base EX5 ($109.99), EX5 Plus ($159.99), and EX5 Max ($229.99) — making it one of the more aggressively priced entries in the modular-case segment. Whether the cooling claims hold up in practice is still an open question.
The design
The core idea is compartmentalization. Instead of one big interior, the EX5 routes your GPU, PSU, motherboard, and radiator into separate dedicated zones. A rear 120mm fan pushes fresh air directly over the VRM, RAM, and storage — those components don't compete with the GPU for the same airflow. The GPU sits in its own enclosed bay, accepting cards up to 358mm long and up to 93mm thick (roughly a 4.6-slot card), which covers most current high-end options including triple-fan RTX 50-series boards.
All three models support 360mm radiators, so liquid-cooling builders aren't penalized for going with the base version.
The base EX5 — four separate chambers replace the traditional open interior. Image: Phanteks
Phanteks frames this as an alternative to glass-panel "showcase" builds that require extra fans to compensate for restricted airflow. The pitch: spend less on fans, get better thermals. It's a direct counter to the RGB-glass aesthetic that has dominated the mid-tower market for years.
The versions
The base EX5 is the bare case. The EX5 Plus adds a Glacier One 360S25-SE AIO liquid cooler pre-installed — that cooler retails separately for $79.99, so the $50 bundle premium is reasonable on paper. The EX5 Max tops out at $229.99 and includes a 6-inch IPS LCD (1440×720) mounted on the chassis, aimed at users who want to display system stats or custom animations without a separate monitor widget.
The EX5 Plus ships with a Glacier One 360mm AIO pre-installed. Image: Phanteks
Per TechPowerUp, all three are listed as available today. UK buyers can find the EX5 Plus at Overclockers UK; Australian stock via PC Case Gear is expected around November 20.
Worth the risk?
The catch is that no independent thermal benchmarks exist yet — only Phanteks' own data. PC case marketing has a long history of overpromising on airflow, and the compartment approach adds structural complexity that could create hot spots if one chamber is poorly ventilated. The modular concept is genuinely different, but "different" and "better" aren't the same thing until reviewers get temperature probes inside.
The EX5 Max adds a 6-inch IPS LCD to the front panel. Image: Phanteks
If you're building now and want to avoid another generic tempered-glass tower, the EX5 is worth watching. Just hold off on the Max until real-world numbers surface.