TOTOLINK N200RE

Overview
"04220B" is silkscreened on the board. This is confirmed to be a Zioncom IP04220

There is a populated and marked serial port header on the board.
 * Pinout for the serial port (header J2) is marked - [Vcc] [Tx] [Rx] [GND] - from the orientation found on top of the board.

Firmware 1.4 and lower should NOT be used due to a vulnerability found on this device.

Rebrands/Variations:
 * CD-R KING WR-NET-024-ZI (IP04220)
 * TOTO LINK N200RE V1 - IP04220 (MT7620N)

Firmware releases:
 * TOTOLINK-N200RE-IP04220-MT7620-SPI-1M8M-V1.4_B20140116_1_364_EN
 * TOTOLINK-N200RE-IP04220-MT7620-SPI-1M8M-V1.4-B20140724-2-457-EN
 * TOTOLINK-N200RE-IP04220-MT7620-SPI-1M8M-V1.5-B20150724-1-457-EN

Firmware files of this device are discontinued on the official site. It is instead found on preservation sites such as Softpedia.