A unique tensioning mechanism with a clamping width between 4.724 and 8.74" means the holder is suitable for holding securely all standard tablet PC models like iPad mini, iPad, iPad Air, iPad Pro, Amazon Kindle, Samsung Galaxy Tab, Google Nexus, Asus Transformer or Microsoft Surface. The holder is especially suitable for tablets with a protective sleeve or case. A tension spring means the tablet can be clipped in or removed from the holder in no time at all. The universal clamping jaw with integrated moss rubber protectors ensures a secure hold and eliminates undesired vibration sound problems. The adjustable bracket with felt protectors and a rubber cover end cap additional stability when setting up the tablet holder in the portrait format - so that the tablet is prevented from falling from the holder, even when in use in the toughest of stage environments. The clamping jaw is adjustable, so the holder cannot impede the functioning of the operating controls. The tablet PC can of course be instantly switched between landscape and portrait format and independent rotation is prevented.