The HRM-300-126S(40) is a right-angle, PCB-mounted SMA (Sub-Miniature Type A) receptacle connector from the MIL-standard HRM series. It features a 1/4-36UNS-2A threaded interface and is designed for through-hole PCB mounting with four 0.95 mm pins. As a recommended, economy-type component, it offers high performance and reliability in a compact, lightweight, and robust package. This connector is suitable for high-density mounting in a wide range of applications, including communications equipment, defense systems, and industrial electronics.