Linksys EA7400 v2


 * • 1300 Mbps - 3SS 5GHz 802.11ac (80MHz chan.),
 * • 450 Mbps - 3SS 2.4GHz 802.11n (40MHz chan.) = 1750 Mbps class



Despite Linksys claims of only three-stream speeds, version 2.0 appears to be wired
 * up for four tx/rx chains with three external antennas and one internal antenna.

It may actually support four spatial streams and higher-than-advertised speeds.
 * RF Report NII at the FCC shows 4 transmit and 4 receive chains.

FCC documents also cover the AC1750 Linksys EA7400 v2 which supposedly
 * disables 256-QAM in 802.11ac to differentiate it for marketing purposes
 * although 256-QAM is likely disabled for 802.11n, not 802.11ac.

RF Report NII at the FCC shows 4 transmit and 4 receive chains.

FCC documents claim that the EA7400 v2 lacks "256QAM in 802.11ac" to differentiate
 * it for marketing purposes but Linksys claims speeds of 1300/450Mbps which would
 * suggest that 256-QAM is disabled for the 802.11n radio instead.

Links

 * Getting to know the Linksys EA7400 Router on Linksys
 * Getting to know the Linksys EA7500 Router on Linksys