The most feature rich chipset of the three, the Z77, will packs four USB 3.0 ports, two SATA 6Gbps, four SATA 3Gbps connectors and can split the 16 PCI Express lanes available for the CPU into a pair of x8 lanes or into an x8 + x4 + x4 configuration. In related news, a leaked Intel slide has also revealed that not all the 6-series chipsets used for Sandy Bridge will be compatible with Ivy Bridge CPUs as Q67, Q65 and B65 platform controller hubs (PCHs) won't support these new chips. The first motherboards based on the Panther Point chipset are expected to arrive together with Intel's Ivy Bridge processors in March/April of 2012. (via Hardcore-Hardware )