TRENDnet says three of its 802.11ac routers can now be flashed with DD-WRT.
The three models are TRENDnet’s TEW-818DRU (v1.0), TEW-812DRU (v2.0), and TEW-811DRU (v1.0).
As is the case with most routers, TRENDnet notes Installing DD-WRT firmware voids TRENDnet’s warranty.