JTAG programming cable
This cable, when coupled with a Xilinx IV download cable and the relevant software allows the reprogramming of both the FPGA and PROM that are on the SMT368.
It is invaluable during the development of core designs for the SMT368.
This cable is also pin compatible with the SMT348, SMT351T, SMT362, SMT372T where it can be used for FPGA programming.