HP D6000 QQ695A Dual I/O Module Disk Enclosure Drive: SAS OS Supported: Windows Server 2003 Microsoft Windows Server 2008 R2 Red Hat Enterprise Linux (RHEL) SUSE Linux Enterprise Server (SLES) VMware ESX Depending on host connectivity Dimensions: 19 x 36.88 x 8.63 Weight: 145 lbs. Package Contents: Includes D6000 base model with no drives, (2) dual port I/O modules, redundant power supplies and redundant fans