Will it fit · CPU cooler
Yes
The Thermalright Peerless Assassin 120 SE is 155 mm tall and the Montech AIR 100 takes air coolers up to 161 mm (6 mm to spare).
| Case's max cooler height | 161 mm |
|---|---|
| Thermalright Peerless Assassin 120 SE height | 155 mm |
| Room left | 6 mm |
| Case type | micro-ATX tower |
Case limits from the maker's spec sheet (checked 2026-10-15).
Yes. The Thermalright Peerless Assassin 120 SE is 155 mm tall and the Montech AIR 100 takes air coolers up to 161 mm (6 mm to spare).
161 mm for air coolers, and radiators up to 240 mm.
