As one of its daily deals, Newegg offers the CyberPower AVR 825VA 450-Watt 8-Outlet UPS, model no. CP825AVRG, for for $90.99. Coupon code "EMCEJEH49" drops it to $54.99. With free shipping, that's tied with our March mention and the lowest total price we could find by $25. It features a USB port, serial port, coaxial protection, and data line protection.