Legit Reviews posted Intel DP55KG Motherboard Preview:

The Intel Extreme Series DP55KG 'Kingsberg' motherboard is the highest end motherboard that Intel will be offering with the P55 Express chipset. The board has a very clean layout and features six phase power management. Right now there is a debug port located just to the left of the blue SATA header, but that will be removed on the production boards. The board features a x16 PCI Express slot and a x8 PCI Express slot for graphics cards and has been licensed to support both ATI CrossFire and NVIDIA SLI multi-GPU technology. The board has a pair dual-channel DDR3 memory slots as these boards do not use triple-channel like the Intel X58 Express platform does. The motherboard also features on-board Bluetooth and has a location for an antenna to be attached. One interesting thing about this flagship motherboard is that Intel is still not using solid-state-capacitors on their enthusiast motherboards. This is something worth pointing out as companies like ASUS, Gigabyte, and MSI have all switched over to better components in recent years.

The rear I/O panel on the Intel DP55KG 'Kinsberg' motherboard is packed full of goodies. Starting from the left you'll see two eSATA headers, which is a nice touch. Just to the right of that is a little button. This is the Back-to-BIOS switch, which can be used to recover the BIOS if your overclocked settings fail to work out for you. After that, you can see the S/PDIF in/out connectors, eight USB 2.0 headers, 1334 Firewire and then all the audio jacks for the Intel High Definition Audio (7.1 Dolby Home Theater support).