Kensington Slots vs Nano security slots

Sendt Silver Notebook Laptop Keyed Lock For Nano Security Slots nano security slot Is there any additional security deposit or prerequisite for zonal roaming? Rs 20- for 3264 k & Rs 59- for micro 3264 knano 64 k , 3G 128 K and Rs nano security lock slot Tough 10mm Lock Head with Cleat™ Locking Technology attaches to the Kensington Nano Security Slot found in select ultra-thin laptops and tablets for

nano slot Adds a Reliable Lock Slot to Any Device Ideal for devices that do not offer built-in lock slots, this kit allows any device to be secured by a Kensington cable