Good seller. The motherboard came in the package which was slightly damaged but it's ok. The board itself is as described. Back pannel, screw set and SATA cable is included but no manual there. Quad channel works, CPU overclock is supported. My E5-1660 can take 4,4GHz stable with 1.360V. Dunno about RAM OC. But you can always flash the bios and make a voltmod. Be careful, the thermal interface under chipset (C602 btw) and VRM is bad as the radiators itself. You should upgrade it and install additional fans.
Arrive safely, good packaging, haven't been able to test yet still waiting on ram and heatsink