A chip packaging design used in Intel's newer Pentium IIchipsets, starting with the XeonCPU. While the Slot 1 interface features a 242-contact connector, Slot 2 uses a somewhat wider 330-contact connector. The biggest difference between Slot 1 and Slot 2, though, is that the Slot 2 design allows the CPU to communicate with the L2 cache at the CPU's full clock speed. In contrast, Slot 1 only supports communication between the L2 cache and CPU at half the CPU's clock speed.
