Belkin BE112230-08 8-Ft 12-Outlet 3940 Joules Surge Protector for $17.97. Shipping is free on orders over $35. If needed, use this Filler Tool to qualify for free shipping. Here is a screenshot for your reference. This surge protector features EMI/RFI noise filter, 500v clamping voltage, and is designed with extra spacing for AC adapters and a 8′ cord.