Intel’s Z87 Haswell Chipset Reported To Finally Lose PCI Slots and Offer All 6Gbs SATA
Intel's Z87 chipset for Haswell isn't just about getting rid of old technologies. In a nod towards future-proofing, Z87 will reportedly boast support for half a dozen SATA 6Gbps connectors, rather than two SATA 6Gbps and four SATA 3Gbps as supported on the Z77 chipset. In other words, Intel is going all-in with SATA 6Gbps (which is backwards compatible with SATA 3Gbps, so don't go tossing your old hard drives).
Intel has no plans of supporting your PCI expansion cards in Haswell (Z87).
Other goodies contained within Z87 include support for 14 USB ports (four of which are USB 3.0), eight PCI Express 2.0 ports, two DIMM modules per channel, integrated voltage regulators, integrated triple display support, and TRIM support in RAID 0 storage configurations.