Yes, you can link SCSI devices using the proper cables. Remember, all other SCSI devices in the SCSI chain must be powered up during operation of the 750 interface. Additionally, the 750 interface must be the last SCSI device in the chain and have a unique SCSI ID number.
The SCSI ID number for the 750 interface is preset to 2 at the factory. However, the ID number may be changed by turning the dial on the back of the interface. The interface reads the switch only at powerup, so after changing the ID number you will need to cycle the power.