This is a market survey to identify sources capable of providing an ultra-small, high-performance Software Defined Radio (SDR) and Platform Development Kit for rapid prototyping of electronic warfare payloads. The required SDR must have an M.2 card footprint, an 18 GHz tuning range, 450 MHz of instantaneous bandwidth, and a 4R1T MIMO configuration with an integrated development kit. The government is seeking either authorized resellers of the Epiq Solutions X40 SDR or equivalent solutions that meet these strict specifications without requiring custom fabrication. Performance of services is anticipated at the 179th CW/MSC in Mansfield, OH. No budget amounts or submission timelines are specified in this notice.