TP-LINK TL-WR940N v4.x

Overview
The TP-Link WR940N is identical to the TL-WR941ND (detachable) except that
 * TP-LINK TL-WR940N on OpenWrt wiki
 * the antennas are not detachable and the hardware version is different.

(N - fixed (integral) antennas, ND - removable antennas) There is no WR941ND-equivalent for v4, yet.
 * TP-LINK TL-WR940N v1.x - TP-LINK TL-WR941ND v4.x
 * TP-LINK TL-WR940N v2.x - TP-LINK TL-WR941ND v5.x
 * TP-LINK TL-WR940N v3.x - TP-LINK TL-WR941ND v6.x


 * 3x 5dBi Fixed Omni Directional Antenna
 * The only difference between v3 and v4 is a more economic board layout
 * in v4 (smaller, different power supply) and an incompatible bootloader
 * (both U-Boot-Mods). The major hardware components are identical.

Links of Interest

 * OpenWrt wiki

Pictures
Retail Images