Amazon offers the Motorola Arris Surfboard 600 Series DOCSIS 3.0 Broadband Cable Modem for $61.13. Clip the $7 coupon to cut the price to $54.13. With free shipping, that's a buck under our May mention and the best price we've seen for a new one. (It's a low now by $7.) It features download speeds of more than 600Mbps and upload speeds of more than 100Mbps. It's compatible with a number of ISPs; however, it won't work with Verizon, AT&T, or CenturyLink.