Most:
- 2 mounting options are available: rigid with said fixing screws, quick fastening with anti vibration rubber fasteners and a kind of nail to secure. I do not think I'll often disassemble my fans, so I opted rigid attachment.
- Quality of the material: the power cable, the fan is very good quality.
- A voltage adapter for fan is also provided.
The least:
- For the rigid attachment (with screws), the end piece to attach to the fan is not threaded in advance. I strongly advise you to prepare the empty before placing the final because you may get the fan nozzle.
I can only recommend. One of the references fan 12 cm.