The Insignia 3-Port 4K HDMI Switch in Black (model NS-HZ335-C) allows you to connect up to three HDMI devices to your TV or monitor, seamlessly switching between them with the push of a button. With support for 4K resolution, this HDMI switch ensures high-quality video and audio transmission. The sleek black design of the switch complements any home entertainment setup, making it a versatile and practical accessory for managing multiple devices with HDMI outputs.