The SyQuest EZ135 External SCSI Drive is a 135MB storage solution suitable for both PC and Mac computers. With a removable drive cartridge feature, this external drive offers high capacity storage in a compact 3.5-inch form factor. The drive type supported is HDD, and it provides a write speed that is twice as fast as other drives in its class. Its interface options include SCSI and SCSI-1, making it compatible with a wide range of systems for efficient data storage and retrieval. This tested working product also comes with a power supply for reliable operation.