SMB (sub-miniature version B) connectors yog tsim nyob rau hauv 1960s.Me me dua SMA connectors, lawv muaj lub snap-on coupling thiab muaj nyob rau hauv 50 thiab 75 Ohm versions.Lawv tau tsim los rau cov ntawv thov ua haujlwm rau 4 GHz.SMB series muaj qhov chaw kub plated thiab sab nrauv thiab haum rau cov ntawv thov hauv txhua qhov kev lag luam.