Check the listing for details. TechTools CVM1 Rev B module from 1997. Listed at 50.00 USD. TechTools CVM1 Rev B module from 1997 - YOU GET EXACTLY WHAT IS PICTURED. * TechTools CVM1 Rev B (printed on the PCB) * Copyright © 1997 TechTools * Two Lattice Semiconductor PLCC chips * Two Xilinx XC9572PC44C CPLDs * One Toshiba TC55328AJ-20 SRAM chip * A high-density edge connector for plugging into a TechTools programmer. What it is This is likely a CVM1 emulation/personality module for a TechTools device programmer, used by engineers to develop and program older programmable logic devices (CPLDs/PLDs). It is not a standalone programmer—it requires the matching TechTools hardware.