HD50M, Half Pitch D-Sub Male External SCSI Terminator
Active Terminators provide a much more stable form of termination than Passive Terminators and are suitable for those longer, higher data rate SCSI cable runs. Terminators designated as 'Active' use a voltage regulator to optimize signal voltage as opposed to those designated 'Passive', which only regulate the line impedance.
SCSI 2 Active Terminator
Connector: Male HD50 (MD50), Latch Clip Type
Used to Terminate SCSI 2 devices