The 1215B-AL from ACST GmbH is a THz Signal Frequency Extender that operates from 470 to 540 GHz (multiplication factor of 36). It requires input frequencies from 13.05 to 15 GHz and provides a THz output with a power of up to 10 mW. This frequency extender has a modular design that allows users to have access to more than one band by combining multiple standard extenders. It generates output signals with vertically-aligned electric field relative to the base of the system. This extender is available in an enclosure that measures 215 x 140 mm with SMA input connectors and WR-1.9 waveguide output interface.