726537-B21 is the HPE 9.5mm SATA DVD-RW Jb Gen9 Kit. The HPE SATA optical drives for HPE ProLiant servers are offered with an industry-standard SATA interface and are supported on most major operating systems. The DVD RW drive will be capable of reading DVD 4.7 GB through 8.5 GB media. It will also be able to read standard stamped, CDR, and CD-RW media. This drive supports writing to CD-R, CD-RW, DVD +R/RW, and DVD -R/RW media via software utilities. For Microsoft® operating systems, this is available by installing the included Roxio software disk. For other operating systems, an operating system-specific software utility is required for writing to media.