UltraSCSI HPDB68 (MicroD68) male/female passive internal terminator. Pass-Thru terminators allow you to terminate a SCSI chain that has no connector for termination. It should be placed just before the last SCSI device. Passive terminator sits on the bus to minimize reflections at the end of the cable and simply provides an impedance that is close to the impedance of the cable. (Connectors: HPDB68 Male/Female)