The HSMC_01 daughter board allows you to interface with the HSMC ports of Altera (Intel) FPGA Development Kits. All x4 PCIe lanes, 80 GPIOs, PCIe reference clock, JTAG, GND/3.3V/12V are all routed out per the HSMC Specification. See below for more technical information.
Altera High Speed Mezzanine Card (HSMC) Specification (PDF)
HSMC_01 Datasheet (PDF)
HSMC_01 Schematics (PDF)