Quantic PMI Model P8T-0R5G18G-60-R-SFF-PN is a high speed, single pole, eight throw, reflective switch with a frequency range of 0.5 to 18.0 GHz with an isolation of 55 dB minimum, an insertion loss of 4.5 dB typical, a VSWR of 2.0:1, an operating input power of +20 dBm, and a switching speed of 100 ns.  Model has SMA female connectors, and the size is 4.00" x 1.50" x 0.40". https://www.pmi-rf.com/product-details/p8t-0r5g18g-60-r-sff-pn-