I purchased my RT-N66U from Amazon a couple of weeks ago and loaded dd-wrt on it straight away. It looks like the CFE was already at 64KB with the stock Asus firmware (v3.0.0.4.260), as I didn’t have to do anything after confirming it with Merlin.
The ASUS RT-N66U Dark Knight is a slim and stylish 450Mbps 5GHz/2.4GHz concurrent dual-band 300,000-session Gigabit wireless router. Using powerful signal tuning and detailed setup, it offers stable and fast networking. RT-N66U BIOS & FIRMWARE | Networking | ASUS USA The ASUS RT-N66U Dark Knight is a slim and stylish 450Mbps 5GHz/2.4GHz concurrent dual-band 300,000-session Gigabit wireless router. Using powerful signal tuning and detailed setup, it offers stable and fast networking. OpenWrt Project: Techdata: Asus RT-AC66U 82 rows OpenWrt Project: ASUS RT-N56U OpenWrt Version Supported UPC EAN Box Model Specific Notes ; A1 / v1 : 2011 : 14.07 Barrier Braker : 610839332465 : 4719543332467 : matte, marked: “RT-N56U Wireless-N Dual-band Gigabit Router” Known as RT-N56U A1; WAN & LAN 1-4 RJ45 sockets contain LED's : B1 / v2 : May 2015 : Unsupported : 610839332472 : 4719543332474
OpenWrt Version Supported UPC EAN Box Model Specific Notes ; A1 / v1 : 2011 : 14.07 Barrier Braker : 610839332465 : 4719543332467 : matte, marked: “RT-N56U Wireless-N Dual-band Gigabit Router” Known as RT-N56U A1; WAN & LAN 1-4 RJ45 sockets contain LED's : B1 / v2 : May 2015 : Unsupported : 610839332472 : 4719543332474
Asus RT-N66U vs Linksys WRT1200AC | ⿻ Full Comparison Ethernet, Fast Ethernet, Gigabit Ethernet, IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n Finding the Best Router for OpenWrt, DD-WRT, and LEDE OpenWrt and LEDE, in particular, have a lot in common. LEDE is an OpenWrt fork that was started because of internal disagreements among the OpenWrt members. less juicy hardware. The R7000 sports a 1 GHz dual core processor, and 256 MB RAM. But my current router, the ASUS RT-N66U, uses a 600 MHz single-core processor. That router handles our
RT-N66U | Networking | ASUS USA
The RT-N66U and RT-N66W are the same except U has a black case and W has a white case. The RT-N66R is the same as the RT-N66U. It is simply a repackage for retail sale. Please notice that due to Broadcom BCM47xx driver limitations wireless support is sketchy. Asus RT-N66U - DD-WRT Wiki At launch, the RT-N66U was limited to 32k nvram. However, CFE (bootloader) version 1.0.1.3 added 64k nvram support around April 2013, but was not compatible with DD-WRT firmware at that time. For details, see these forum links to historical nvram and 64K implemention discussions: Fractal comments and "RT-N66 CFE Thread" RT-N66U | Networking | ASUS USA The ASUS RT-N66U Dark Knight is a slim and stylish 450Mbps 5GHz/2.4GHz concurrent dual-band 300,000-session Gigabit wireless router. Using powerful signal tuning and detailed setup, it offers stable and fast networking. Invalid Firmware Upload on Asus RT-N66U B1 - OpenWrt Forum