SCSI terminators are used in SCSI (Small Computer System Interface) systems to properly terminate the SCSI bus. The SCSI bus is a high-speed parallel interface used to connect peripheral devices like hard drives, tape drives, and scanners to a computer or server. SCSI terminators play a critical role in ensuring signal integrity, preventing data corruption, and optimizing the performance of SCSI devices by properly terminating the signal lines. The pricing of SCSI terminators can vary based on several factors such as the type of SCSI standard supported (e.g., SCSI-1, SCSI-2, SCSI-3), the speed rating, and whether they are passive or active terminators. Passive terminators, which consist of resistors, are generally more affordable and suitable for slower SCSI speeds. Active terminators, which include electronic components to actively maintain termination impedance across a range of SCSI speeds, may be more expensive but are necessary for higher-speed SCSI configurations. When purchasing the terminators, ensure compatibility with the SCSI standard and speed used in your SCSI system. Choose between passive or active terminators based on the SCSI speed requirements and system configuration. Verify the number of terminators needed depending on the SCSI topology.