Every modem rental fee you pay to your ISP is padding for their bottom line, and a total rip-off for you. Fortunately, you can buy your own modem for a relatively small upfront cost, and knock a few bucks off your monthly bill.

Motorola’s SB6141 for years was the consensus pick for best modem for most cable internet subscribers, and while it’s been surpassed by the SB6183 and others, it’s still a perfectly good option for anyone with download speeds of 300mbps or less. So, ready to stick it to your ISP? For a limited time, you can score a refurb from Amazon for $40, the best price we’ve ever seen.

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