 Hi, welcome to T-Smart. We are from Shenzhen, China and our company is many manufactured HDMI matrix switcher KVM. So this is like a KVM switch, this is a product to do with the many USB ports. What is, how does it work? This KVM, this keyboard and mouse, this USB power is for keyboard and mouse. And then it goes out to two computers? Yeah, two computers. Two monitors? Yeah, one monitor. One monitor for two computer inputs? Yeah, yeah. And you can select one computer and control this computer and then you switch to another one. How do you switch? Just press this button. Just press one time. Yeah, press this button to switch the computer. And you have different style, it's a big one like this? Yeah. How many are in here? This one is four. This one we have four input and one output. So one monitor, one keyboard and mouse with four computers? Yeah, yeah, yes. And also we have an analog audio output for headphone or small speaker. But they're getting the analog audio from the HDMI input convert to the audio? No. USB audio? No, from HDMI. From HDMI to the mini-track? Yeah. And this is a switch? This is HDMI matrix. All right. You also do Type-C? Yeah, Type-C to VGA and HDMI. But no, we didn't take the HDMI here. And this is a cable? Yeah. How does it work here? Okay, this is actually my cable with fiber optical. The fiber optical, the high-speed data goes through this. Yeah, what is in here? This is a converter? It's a 5W converter model. Converter model to get the fiber optic that means it can be very, very long cable? Yeah, yeah. And high quality? Yeah, yeah. A long, long, long can be 300, 300 meters. How much is expensive to get a 300-meter fiber optic HDMI cable? Yeah, this is on... This is very expensive, but we are going to maybe local costum... You're from Shenzhen company? Yeah. And you have 18 gigabit cables? Okay, 16 hertz. All right. And so you do premium cable, you certify everything? Sorry? All the quality is good for all the cables? Yeah, yeah, yeah. Good switches? Yeah, very good switches. And this says a lot in European and USA. I'm also clear.