B&H Photo Video the TP-Link 8-Port Gigabit Ethernet Easy Smart Switch for $29.99. Clip the on-page coupon to drop it to $16.99. With free shipping, that's tied with our February mention as the best deal we've seen. (It's the lowest price today by $8.) It features eight RJ45 ports.
From entertainment to education, if you know the tricks, you can save big.