USB相關硬體設備存取控制軟體 - Ratool，可以唯讀或封鎖光碟機、軟碟機、磁帶裝置、Windows可攜式裝置，拒絕所有卸除式磁碟的存取，網路上此類工具相當多，但都不是很有效！因為封鎖之後還能夠用其他方法解除，但經此軟體封鎖之後，僅能用它來解除！（阿榮）
下載連結→ https://www.azofreeware.com/p/ratool.html
官方網站：Sordum.org
軟體性質：免費軟體
介面語言：繁體中文（含多國語系）
系統需求：Windows
Removable Access tool is a very simple-to-use portable freeware Application it helps an individual or a system administrator control USB storage devices , CD-DVD devices, Floppy device , Tape and WPD devices. You can protect your confidential data from being copied by others . Ratool can disable USB storage access or enable write protection on all USB Flash drives thus prevent data from being modified or deleted.