From settings /about it says the following:
Android version: 4.2.1
Kernel Version: 3.1.10-g03bdcb1 android@Mercury #1 Fri Mar 29 17:04:32 CST 2013
Build Number: JOP40D.WW-epad-10.6.1.14.4-20130329
Fri Mar 29 17:04:32 CST 2013
On the boot screen with the three icons it says: Key driver not found...booting OS. Then: Android cardhu-user bootloader <1.00e> released by "ww-epad-10.6.1.14.4-20130329 A03
I have just received my TF700T back from RMA in Sydney. Problem was failed HDMI port and unusable slowness. Returned to me as warranty ended so I unlocked it. Now I want to install custom recovery and Chromi-X and later (when stable) CM11. However I'm not sure what ROM version and bootloader (both supposedly stock) that I have, whether I need to download and install the latest official ROM first, but the naming used in my tablet info doesn't seem to match any of the download descriptions on the asus website. I have rooted and changed ROM on phone before but thats all, so not very experienced.