the sticker on the back says "Ver: 1.5". When opening the case, the board reads in the lower right "2050500272 Rev:1.3".
Device was bought today. Regarding the wiki entry at http://wiki.openwrt.org/toh/tp-link/tl-wdr4300 what does the Version/Model column actually refer to - in my case 1.5 or 1.3?
Edit: Yet another thing: the sticker on the yellow switch module reads: "TL-WDR4300 VER: 1.4 [...]". They sure know how to confuse.
(Last edited by TCM1 on 3 Aug 2013, 00:16)