Specification: a set of 16 Material: Silicone Size: 96.5cm Package Included: VGA interface1 (standard display signal interface for projectors) USB interface4 (standard USB2.0 interface, used to connect various expansion devices) HDMI interface1 (standard HDMI video signal interface, used as a TV) Micro HDMI interface1 Headphone/microphone interface2 (notebook used to connect headphones, speakers, etc.) TYPE-C interface1 RJ45 interface1 SD interface2 (standard card reader interface) ESATA interface2 (Type A and Type B) 1394 interface1 (small port 1394 cable, notebook is such a small port, connected to DV camera) description: Suitable for most interfaces, made of soft rubber material, the sockets are tightly matched, waterproof and dustproof Protect the data port of the laptop from dust and rust. Note: There are 16 in a set, generally not all of them are used. If the notebook does not have so many ports, you can disassemble a few as many as you need to prevent loss. (Some laptops do not have special interfaces, only commonly used interfaces! Note: Apple computers are not suitable) Package quantity: 1laptop dust plug set