Ostensibly, Corsair's Carbide line of enclosures are their budget cases; the Obsidian and Graphite lines both start where the beefy Carbide 500R leaves off. Corsair's least expensive entry is the one we have on hand today, the Carbide 300R. Yet like a certain fruit-flavored company we know, they seem unwilling to part with many of the amenities that make their cases such a joy to assemble and work with, and the result is a Carbide that's caught between two worlds.
The Carbide 300R attempts to bring many of the things we've come to know and love and expect from Corsair cases down to a hopefully more palatable $79 price tag. While that's not in the "true budget" arena we've seen companies like Bitfenix and Antec stake out, it's definitely more affordable than most and may hit a sweet spot for users who don't want to spend too much on a case but want something of slightly higher quality.