ReadyNas 4200 V2 processor

Yes, it's a V2 per the photos from the seller. going to be picking it up tomorrow. I plan on using this for my home. The price is too irresistible for a 12 bay. It's not that I'm going to put other OS on it, just wanted to know that it's an option should I get board one day and decide to drop Serv 2012 on there. We use the readynas duo v2 at work, for the most part it's pretty good but on our GbE network I max out at 60Mbps read speed. My Synology seems to max out at 70Mbps but my Server running Serv 2012 clock at 90+Mbps all on the same network. I wonder if this is any better. I plan on getting rid of the 2 bay synology at home and moving to this and move all of my drives to this. I know it's an overkill for my home but it's probably the last nas I need if I can achieve 90Mpbs transfer speed or more. I'm sure if I went with 10GbE its faster but I can't afford that switch at this time and neither does my clients support it. When 10GbE drops to consumer price then I'm ready. :)

Also, does this support JBOD? I've never had a NAS that supported this many drives before, can I have multiple raid array on this plus JBOD for not so important data?