Linksys EA5800

Overview
EA5800 samples on ebay reuse the FCC id for the Linksys EA6100 so some details are copied from there.

The Linksys FAQ page for this device says, "It supports data rates up to 150 Mbps on the 2.4 GHz band and 867 Mbps on the 5 GHz band." Since they reused the FCC certification for the EA6100, this device probably has the same radio capable of two spatial streams and either one stream is disabled in software or perhaps the device is limited to HT20 (20 MHz channel bandwidth) to restrict the speed to 150 Mbps.