We already gave you a sneak peek at Asus' upcoming P7P55D Deluxe motherboard last week. Well, the same company has another high-end P55 motherboard up its sleeve: the P7P55D Premium.
As you'll see in the photo gallery below, the P7P55D Premium looks a lot like the Deluxe, but with a few key differences. The Premium's expansion area includes one fewer physical PCI Express x16 slot, and the PCI and PCIe x1 slots are in a different configuration. The power circuitry heatsinks are a little longer, too, and it looks like the Premium has a few extra power phases (the box says "32 + 3").
More importantly, the Premium trades a pair of 300MB/s Serial ATA ports for two that support 600MB/s transfer speeds. According to a PowerPoint presentation Asus sent us, the board diverts four first-gen PCIe lanes from the P55 chipset to a PCIe 2.0 bridge, then to a Marvell 9123 third-gen SATA controller to allow for the 6Gbps transfer rate.
Aside from that, the P7P55D Premium will take Lynnfield processors and up to two AMD or Nvidia graphics cards running in tandem. Asus even throws in a little wired remote that lets you tweak overclocking settings.