LG 24GN50W-B

A 24-inch TN panel at 1920x1080, refreshing at 144Hz. Response time is rated 1ms. High refresh matters most in competitive titles — pair it with a GPU that can actually push 144 fps at 1920x1080. At $399.99 it sits in the high-end monitor bracket.

Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. Warranty coverage follows LG's standard policy — confirm regional terms on the listing. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.