This refurbished Macbook Air is on sale for $399.99 right now (reg. $575). It’s originally from 2017, but it has been refurbished with a Grade “B” rating, which means there may be faint scuffs that don’t affect its performance. It has a 13.3-inch display with 1440 x 900 resolution, a full-sized backlit keyboard, and macOS Sierra installed. It has a 5th Gen Intel Core 95 processor, 8GB of RAM, and 256GB internal storage. Basic productivity apps like Microsoft Office and streaming apps should work fine, but more demanding software could lag.
If you’re looking for a cheaper option for things like schoolwork or work tasks, this grade “B” refurbished MacBook Air is on sale for $399.99 right now, though prices can change at any time.