LG 34GK950F-B

This is a 34-inch IPS panel at 3440x1440, 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 3440x1440. At $12.08 it sits in the budget monitor bracket.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. LG backs the product through its standard warranty channels; check the listing for region-specific terms. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.