We mentioned this little puppy once or twice before, but it's been spotted and caught on camera at CES, yep the SR-X dual-socket motherboard.
With its ultra lrage form factor it offers support for not one but two LGA 2011 Intel processors Sandy Bridge-E for single-CPU setups, Sandy Bridge-EP for dual-CPU.
looking at the board you will spot 12 DDR3 memory slots allowing for up to 96 GB of RAM, two (one 8-pin and one 6-pin) power connector per CPU, six SATA and four SAS (Serial Attached SCSI) ports, seven PCI-Express 3.0 x16 slots for SLI or CrossFireX configurations, PCIe disable switches.
Next to that more geeky'ness in the form of voltage read points, a debug LED, dual Gigabit Ethernet, two eSATA ports, 7.1 channel audio, Bluetooth, EVBot support, plus six USB 3.0 connectors.
The SR-X still hasn't been priced (which is prolly for the better). Neither is there an ETA for launch. But that would be alongside compatibel LGA 2011 Xeon MP processors.