Synchronous Labs (also known as Double E Technologies) is a company that provides hardware, software, and signal processing solutions. Its products include CelestialLink, a virtual satellite modem platform for broadband, broadcasting, and communications; and Kepler, a peripheral component interconnect express (PCIe)-based digital intermediate frequency (DIFI) packetizer and digitizer tool for satellite terminals. The company offers waveform and field-programmable gate array (FPGA) development and RF system design services.