Quantic PMI Model 24SFB-5D75G18D25G-2U-SFF is a 24-Channel (bandpass filters) switched filter bank offering ultra-fast switch speed, high rejection with low loss making this model is ideal for automated spectrum monitoring systems. Chassis size is 8.5" x 3.5" x 13" with 15 Pin subminiature D connector for power/control on rear panel and SMA female connectors on the front panel.