Check the listing for details. Cable. Computer Lock, K-Slot, Combonation Code. Condition: Used. Listed at 2.99 USD. The Cable Computer Lock is a secure locking device designed to protect laptops and desktops from theft. It features a combination code for added security, making it difficult for thieves to bypass the lock. The K-Slot design ensures a sturdy and reliable connection to the computer, while the cable provides a durable and flexible option for securing the device. Perfect for use in public places or at home to keep your valuable electronics safe.