The Kensington N17 lock itself is not a key; rather, it's a laptop security device that uses a key to lock and unlock it, and this key is specific to its N17 "keyed" version designed for Dell laptops with wedge-shaped security slots. The N17 key is part of a 5mm keying system with anti-pick technology, ensuring the key operates the lock and provides security. Keys for N17 locks can be registered and retrieved through Kensington's program, which also allows for master-keying solutions for IT administrators.