Best answer: Whether or not you need a network switch depends on how many devices you need to hook up to your home or office network using cables. If you usually rely on Wi-Fi and are happy with the performance, a network switch likely isn't needed, but if you want to connect various PCs and other hardware, a switch may make your life easier.Gigabit network: TP-Link TL-SG105E ($25 at Amazon)Affordable switch: TP-Link TL-SF1005D ($8 at Amazon)