IN PICTURES: Wi-Fi’s latest speed boost: 802.11ac client radios

Here’s an alphabetic sampling of products; prices as of October 10, 2013, based on data from Google Shopping and Amazon.

Amped Wireless High Power 500mW Dual Band AC Wi-Fi USB Adapter ACA1 The ACA1, released in July 2013, is eye-catching, and the specs are impressive: USB 3.0, with included 3.5-foot cable; up to 867Mbps for 11ac; up to 500 milliWatts from the power amplifiers, to boost range and signal quality, and up to 5 dBi gain on the antenna system. But PC Mag's Samara Lynn found that it “registered some of the worst throughput among USB 11ac wireless adapters we've tested.” Customer reviews at Amazon are all over the map.

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