The LPC-388 is a current/voltage monitor cable to be used with the LPB-380 Laser Pulse Board for the LDP-3840B Pulsed Laser Diode Driver and the LPB-386 Laser Pulse Board for the LDP-3830 Pulsed Laser Diode Driver. This is an SMB Plug to BNC male connector, on RG174 Coax cable, with 50Ω impedance on both terminations.