Small Case, Big Airflow – NZXT launches its MATX H3 Flow PC case

NZXT gives MATX fans some love with its new H3 Flow PC case

NZXT has officially launched a range of new PC products at Computex 2025. This includes their new H9 Flow PC Case (see our review here) and their new Kraken Elite 420 CPU cooler (see our review here). At their Computex showroom, NZXT has also shown us their new H3 Flow PC case. This is a new Micro-ATX (MATX) PC chassis from NZXT that acts as a smaller version of their H6 Flow and H9 Flow enclosures.

Below is a complete MATX PC build using parts from ASRock, Zotac Gaming, and BIWIN. N0te that we have visited BIWIN at Computex, and you can see our booth tour here.

This compact PC features an Intel i9-14900K CPU and a ZOTAC RTX 5070 AMP White Edition graphics card. The system also uses one of NZXT’s new Kraken Plus 240 CPU coolers.

NZXT is using two of its RGB Core series fan sets to draw cool air inside its H3 Flow PC case. At the front of the case is an F280 RGB Core fan set, equivalent to two 140mm fans, and at the bottom of the case is an NZXT F120 Core fan set that pushes air towards the system’s graphics card.

The H3 Flow supports liquid coolers up to a 240mm CPU liquid cooler at the top of the case. However, this case can also support up to two 140mm fans at the top. There’s enough space for two 140mm fans up there, but not enough space for a 280mm liquid cooling solution.

NZXT’s H3 Flow is available now in the UK with prices starting at £64.99.

You can join the discussion on NZXT’s new H3 PC case on the OC3D Forums.