TP-LINK TL-WR840N v4

Overview
"2050500850" and "1642" is silkscreened on the board in the FCC photos.

Links of Interest

 * Demo UI
 * TP-LINK TL-WR840N (EU) v4 on OpenWrt wiki

Forum threads

 * OpenWrt on TL-WR841N v13 or TL-WR840N v4 on OpenWrt forums
 * Note: TL-WR840N v4 have 5 leds: power, wifi, lan (one led for all ports), wan, lock(wps).
 * TL-WR841N v13 have 8 leds: power, wifi, lan4, lan3, lan2, lan1, wan, lock(wps).
 * ramips: add initial support for TP-LINK TL-WR840N v4
 * Specification:
 * - SoC: MediaTek MT7628NN (580MHz)
 * - RAM: 64 MiB (Winbond W9751G6JB-25)
 * - Flash: 8 MiB (GigaDevice GD25Q64CSIG)
 * - LAN: 4x 100M
 * - WAN: 1x 100M
 * - Antennas: 2x non-detachable
 * - LED: 5x green
 * - Buttons: 1x reset


 * Support for TL-WR840N (ES) Ver 5.0 (EU) on LEDE forums
 * TP-LINK TL-WR840N v4
 * CPU: MediaTek MT7628NN @575MHz
 * Flash: GigaDevice GD25Q64B (8MB)
 * RAM: Winbond W9751G6KB-25 (64MB)
 * TP-LINK TL-WR840N v5
 * CPU: MediaTek MT7628NN @575MHz
 * Flash: GigaDevice GD25Q32B (4MB)
 * RAM: ESMT M14D5121632A (64MB)


 * TP-LINK TL-WR840N v4 on 4pda forums (RU)