Material and build ABS plastic construction: solid and durable, comfortable to handle, with antifingerprint and antiscratch properties. Key features Three major functions Dual USB plus dual frequency: provides two USB 2.0 interfaces, plus a start button, a restart button, and a dual audio interface (input and output). Internet cafe antitheft design Uses the desktop mobile switch to lock the computer case by pressing the power on and restart buttons on the switch, preventing startup if the machine is disassembled to steal components such as CPU, memory, or graphics card. Practical design and integration Connects to the corresponding motherboard interface, with an antitheft block card on the product extension line for improved security. The extension cable length is 1.6 meters, allowing placement anywhere on a computer desktop. Compatibility and performance Compatible with standard motherboard interfaces for straightforward installation. Provides two USB 2.0 ports for quick peripheral access and a dual audio interface (input and output) for headset or mic use. Extension cable length of 1.6 meters offers flexible desktop placement without crowding the workstation. Use scenarios Internet cafe operation Enhances security by preventing startup if the case is tampered with, protecting value components while customers use the machines. Education and training labs Facilitates safe, controlled access to USB peripherals and audio devices, while maintaining tamperresistant hardware protection. Small offices or gaming lounges Provides convenient frontdesk control of PC power functions and reliable USB/audio access, reducing maintenance interruptions and deterring hardware theft.