An internal Wangtek WT-150 SCSI tape streamer which takes 150MB tapes. It was supplied with the Tapestore backup software, and may have come in an external case capable of mounting 2x 5.25" Half-height devices and cabling..
The GVP v2.x Advanced Autoboot ROM set was included with the unit for Impact Series I controllers.
The Tapestore software could also use the v3.x/v4.x FastROM, C= scsi.device (A2091/A590/A3000), and other SCSI_Direct/HD_SCSI_CMD compatible drivers produced after Amiga OS 2.04 came out.