HD Mini SAS - eSATA x 4 cables provide multi channel connectivity between external SAS controllers and eSATA based storage devices. These assemblies feature an SFF 8644 HD Mini SAS connector on one end and four eSATA outputs on the other, supporting SAS data rates for external storage expansion. They are used in servers, JBOD systems, and mixed interface storage environments requiring flexible connectivity. Multiple lengths and configurations ensure reliable performance across applications with support from DataStorageCables.