As I showed in the following picture, currently, we do not enough space to store these computers, printers and scanners which are already broken and useless. For safety concerns, I suggest we remove valueless devices to prevent us from potential security risks.
补充：最后一句句意有些重复,如在正式场合,请使用时稍加修改；写作文之类就不必计较了.英语中尽量把自己的想法（我们应该……）放在原因（……存在隐患）前面,这才是更符合逻辑的表达.