The exploded view of the Torrent Nano reveals a fairly simple, and very flexible, design
Moving right along to performance, this is a high-airflow design after all, so cooling is excellent. Noise levels will depend on how you populate the enclosure, as well as how you tailor your fan profiles. The included 180 mm front intake fan is PWM, allowing full control of speed, and by extension, noise.
The front fan is pretty quiet at idle, though the system (CPU and front fans were both set to “normal” in BIOS setup, and linked to CPU temp) was up in the mid 40’s dBA under load. Not quiet, but I was going for maximum cooling.