ZuniDigital ZG7000B-15 7 Outlet Digital Smart Green Surge Protector for $14.99. Shipping is free on orders over $25. If needed, use this Filler Tool to pad the order for free shipping. Here is a screenshot for your reference. It features 1 master switch, 4 controlled outlets and 2 constant outlets. It automatically turns off the controlled outlets when the device on the master outlet is off in order to save energy. At the time of this post, 53 out of 58 customer reviews have given it 4/5 and 5/5 stars.