TP-Link AC 1750 Wi‑Fi range extender

$100 From TP-Link, tp-link.com

Features 450Mbps on 2.4GHz channel and 1300Mbps on 5GHz channel, adjustable antennas

Sharing a house with other students can give your network a pounding. This Wi-Fi extender offers super-speedy performance, packs in a great range, and is a breeze to set up.