PortSavers protect the wear and tear of computer ports! Notebook computer ports are impossible to repair if worn out as a result of constant plugging and unplugging of cables and peripherals. A PortSaver is inexpensive and can be easily discarded and replaced. This slim adaptor attaches securely and works with any DB37 connections including SCSI & RS449 serial ports. (Connectors: DB37 Male to Female)