Slim enough to work on even the thinnest Ultrabook, this Microsaver Ultrabook Laptop Keyed Lock features a rotating head and pivoting cable to provide easy lock attachment and removal. Included K-slot adapter is designed for Macbook Air and Ultrabooks lacking a K-slot. Patented, disc-style, T-bar locking mechanism is nearly impenetrable. Lock comes with cut-resistant, 6' carbon-strengthened steel cable and offers free online key registration for secure key replacement. Lock is compatible with Ultrabook, MacBook and Chromebook laptops. Compatible with any tablet, simply attach it with the included ultra-strong adhesive, loop the cable around a fixed structure, lock and your Ultrabook is secure.