Computer Accessory Sets features: Universal USB Interface Laptop Security Lock Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. 1. Any digital device with a USB interface can be locked 2. Electroplated alloy casing, environmentally friendly braided steel cable 3. The lock body can be rotated 360 degrees 4. Hidden code design 5. Password setting method: Align the correct password with the arrow on the side of the lock body, push the code switch to the direction of the arrow by hand, and press and hold until the next step is completed (do not let go during the setting process); The first password, such as 1-0-0-0, release the code switch, check whether the password is set successfully, and then repeat the above steps, and then set the second, third, and fourth passwords respectively. 6. Please note: the bottom of the USB hole cannot be used flat; the bottom of the USB hole can be used with a spring tongue.