What is the difference between a Kensington and Dell security cable?

Secure your valuables with the Sinox Model RL0280F872 Security cable keyed lock, a laptop lock designed for nano slots This lock has a push-to-lock

Secure your valuables with the Sinox Model RL0280F872 Security cable keyed lock, a laptop lock designed for nano slots This lock has a push-to-lock

nano slot Lock Notebook Anti-theft Lock Nano Lock For Laptops Laptop Security Lock nano laptop notebook cable lock Compatible with KensingtonHP Nano slot

nano security lock slot Protect your laptop with built-in Nano security lock from theft with this cut resistant lock Choose your own 4-digit code, 10000 possible