Used in conjunction with the USB interface of digital devices, it is a universal USB computer lock. 4-digit password combination, easy to set. Made of zinc alloy material, . The lock is easy to install with one-handed operation and is convenient to carry. Easy to install and easy to use. Type:USB Password Lock Applicable:digital devices with USB holes (except USB3.0) Note:Due to the special properties of the product, the feeling of plugging and unplugging the USB hole become loose, but it not affect the normal connection of other devices Colour:Silver & Black Material:Zinc alloy Size:Cable length:1.9m Package Contents: 5 x USB Password Lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.