TP-LINK Archer C2 v1.x

Overview
Per TP-LINK's code tarball, this device to be using MT7620A + MT7610E.
 * The source code is the same as for TP-LINK Archer C20i, the only difference in kernel configuration being the ethernet switch options.

"2050500428" is silkscreened on the board in the FCC photos.
 * The switch used seems to be RTL8367RD / RTL8367RB.

"2050500500" is silkscreened on the main board v1.1

Links of Interest

 * Firmware Interface | Downloads | User Guide
 * TP-LINK's GPL Code Center (w/ current source release)

Pictures
Retail Images 

Probable used PSU(s)
The power supply shown in the FCC photos is a TP-LINK T120150-2B1.