30-Unit Cell Phone Storage Cabinet with USB-C Charging. Item No.: M-CP30S • An orderly and secure storage solution for charging smartphones • It can accommodate and charge 30 mobile phones at the same time and is suitable for most mobile phone models.  • The clear front panel allows you to check storage and charging status at a glance without unlocking.• One-piece design for quick, hassle-free setup—perfect for busy teachers and ready to use right away.