The NetApp X6559-R6 is an external SAS cable designed to facilitate reliable data transmission between components in a storage environment. Utilizing a copper medium and the Serial Attached SCSI protocol, it supports speeds of 6Gb/s to ensure consistent performance during data transfers. This 5-meter cable features QSFP to QSFP connectors, making it suitable for controller-to-shelf, shelf-to-shelf, and high-availability SAS connections. It is specifically engineered for NetApp storage systems equipped with QSFP external SAS ports, such as those found in IOM3 or IOM6 era shelves. While the connector shape is similar to other standards, this cable is dedicated to SAS traffic and will not work with Ethernet or InfiniBand ports. Its length provides the necessary flexibility for organizing hardware within a server rack without compromising signal integrity.