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Monitors, Printers and Peripherals: Where to Start

Everything around the PC: displays, printers and supplies, keyboards, mice, audio, projectors, KVM switches and power protection. 4,010 products from $3.99 to $6,888.99. Vszerda, YINGHUA, WRIARICH and more.

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Start with the job, then follow the connector

This area is organised by what the device does at your desk: show an image, print on paper, take input, play sound, switch between computers or protect equipment from power problems. Decide the job first, then the connection. Video links come in several types: HDMI, DisplayPort and USB-C can all carry video, while USB-A is used for data and power. For a screen, start with Computer Monitors & Displays; to share one keyboard, mouse and screen across computers, see KVM Switches & Rack Consoles.

Resolution, ports, consumables: three mismatches to avoid

Three mismatches cause most disappointment here. First, resolution: a switch, dock or adapter rated for 1920 × 1200 cannot pass a 4K signal, so match its supported video resolution to your screen. Second, port counts: a two-port device connects two computers, so count the machines and screens you actually have. Third, consumables: ink cartridges and toner generally fit only certain printer models, so copy the exact printer model number before choosing.

Questions about Monitors, Printers and Peripherals: Where to Start

What is the difference between HDMI and DisplayPort?
Both carry video and audio. HDMI is found on TVs and most monitors, while DisplayPort is common on PC graphics cards and monitors and handles high refresh rates and daisy-chained screens. Use whichever both your computer and screen share, or a proper adapter.
How can one keyboard and mouse control two computers?
Use a KVM switch, which shares one keyboard, mouse and monitor between several computers. Check that it supports your video connection and resolution and has enough computer ports, then switch with a button or a hotkey.
Do I need a UPS or just a surge protector?
A surge protector only absorbs voltage spikes. A UPS also holds a battery that keeps equipment running through a blackout long enough to save work and shut down. For a desktop PC with unsaved work, a UPS is the safer choice.