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Nighthawk AC1900 Smart WiFi Router
Most of the information on this page was copied from the Netgear R7000 since the FCC ID is the same. This router appears to be a stripped down R7000 exclusively for Costco like the Netgear AC1450 was. The only obvious change from the R7000 to this R6900 appears to be the removal of the USB 2.0 port.
The R6900 was mentioned in the Test Report (NII).pdf dated 10/05/2015.