Q1: I feel puzzle what is difference between evaluation board (like VCU 128) and other Xilinx flatforms, is it general and powerful tool for most development works aimed at using FPGA?
Q2: Is the VCU128 board only able to put into PC chassis? Can I connect it with all-in-one machine by only USB ports, like general FPGA does?
Yes you can use this board on a desk connected via jtag to a computer, or in a chasis, or stand alone with the onboard programmign methods. It is not a requirment to connect it into a chasis.