HES7XV4000BP is a dual AMD Virtex 7 FPGA prototyping and emulation board for small and medium sized ASIC designs or large FPGA designs. The board provides a capacity of 24 Million ASIC gates estimated for 60% of FPGA utilization and is scalable up to 96 Million gates. There is one SO-DIMM slot for DDR3 memory connected to one of the Virtex 7 FPGA providing up to 8GB of external RAM to the emulated design. The highest quality PCB design with proper on-board trace routing assures reliable LVDS and GTX transfers up to the inherent limits of the FPGA device. A very precisely designed clocking block provides 5 length aligned global clock lines routed to each FPGA device. It also provides multiple configuration options due to integrating different oscillators, programmable clock synthesizers, and crosspoint switch multiplexers. The HES-7 prototyping solution was architected to provide easy implementation and expansion in a rack form factor with non-proprietary Backplane for flexible and scalable hardware configurations.