USBAC

USBAC, or USB Attached SCSI, is a protocol that allows SCSI (Small Computer System Interface) devices to be connected to a host computer via a USB (Universal Serial Bus) interface. It is designed to provide a bridge between the SCSI command set and the USB protocol, enabling the use of SCSI devices with USB hosts.

The USBAC protocol is defined in the USB Mass Storage Class Bulk-Only Transport specification. It is primarily used for connecting storage devices, such as hard drives and CD-ROMs, to computers. By using USBAC, these devices can be accessed and controlled using standard SCSI commands, which are then translated into USB commands for communication with the host.

One of the key advantages of USBAC is its compatibility. Since it adheres to the SCSI command set, it can support a wide range of storage devices that use SCSI protocols. This makes it a versatile solution for integrating various storage technologies with USB interfaces. Additionally, USBAC leverages the simplicity and widespread adoption of USB, making it a convenient choice for both manufacturers and end-users.

USBAC is commonly implemented in external storage devices, such as external hard drives and USB-connected optical drives. It is also used in some embedded systems and industrial applications where SCSI devices need to be interfaced with USB hosts. The protocol ensures reliable data transfer and device management, making it a robust choice for these applications.

In summary, USBAC is a protocol that facilitates the connection of SCSI devices to USB hosts. Its compatibility with the SCSI command set and the widespread use of USB make it a practical and efficient solution for various storage and data transfer needs.