MULTIFAN Mini, Compact 40mm USB Fan for VR Gear, Aquarium

The fan is difficult to mount with screws like normal pc fans due to rubbers on both sides...

薄型が欲しくて買った。狭い場所でも使えるのは良かったが、80mm製品と比較して音が大きく少し残念だった。

Could be improved by having the speed controller on the branch that goes to the fan instead of on the main power branch of the power supply cord.

The sound is so loud, refer from your noise spec is 18 dBA. I don't think it's coming from a product that tells itself it's quiet 18 dBA level. I think noise level around 60 dBA or more.

It's not a bad fan by any means, but it's so loud that I had to turn up the speakers so I didn't hear them. I bought 2 and they both had the same noise level so they were not faulty. Had to stop using them due to the noise, waste of money.

The description is different. The sound is not quiet. 18dBA？ It's a bad joke. 商品説明にアメリカンジョークは必用ありません 18デシベルどころかその倍は出ています 本体-ケーブル-スイッチ-ケーブル-USB端子-ケーブル-USB端子と1本のケーブルにUSB端子が2つもあって邪魔です 2つ繋げる連結用らしいですが、それならサイズの大きいファンを1つ使った方が風量を確保しつつ低騒音化にもなります 本体四隅の防振ゴムだけは評価します(取り外して他の製品に流用しました) 追記 スマホの音量測定アプリを使って見たところ、Low駆動で40db～50dbと商品説明の倍以上の騒音を放っていました