15-pin

I have three PCs, an HP Omen, an Acer Predator, and another HP. The monitor port is HDMI on the monitor I use. The keyboard is USB, and the mouse is wireless USB. These are compatible with the HP Omen. The other PCs are 15-pin and PS2. I need a hardware KVM switch that will handle all those...

I have a modular power supply (Corsair CX550M). I bought a seagate barracuda 2tb. It didn't come with any cables and I realised I needed to buy them so I bought a sata cable and also this cable which I though would power my hard drive. Turns out it's male and I need female. I cannot for the life...