SCSI HPDB50 (MicroD50) male active external terminator. Active terminator prevents signal reflections to provide data integrity and works to control the impedance at the end of the bus by using a voltage regulator, not just the power supplied by the SCSI controller. It is more reliable than passive termination for high speed devices and long distance applications. This terminator can also be used for internal applications. (Connectors: HPDB50 Male)