Will it fit · CPU cooler
No
The Thermalright Peerless Assassin 120 SE is 155 mm tall and the Lian Li A4-H2O only takes 55 mm.
The side panel won't close. Pick an air cooler under 55 mm or a 240 mm AIO.
| Case's max cooler height | 55 mm |
|---|---|
| Thermalright Peerless Assassin 120 SE height | 155 mm |
| Room left | 100 mm too tall |
| Case type | mini-ITX case |
Case limits from the maker's spec sheet (checked 2026-10-15).
No. The Thermalright Peerless Assassin 120 SE is 155 mm tall and the Lian Li A4-H2O only takes 55 mm. The side panel won't close. Pick an air cooler under 55 mm or a 240 mm AIO.
55 mm for air coolers, and radiators up to 240 mm.
