|  | 
| Disks |  
| Option # | Manufacturing Part #
 | Description | Previous Part #
 |  
| XRB-ST1CE-500G7K | 540-6645 [C] | 500GB - 7200RPM SATA, Disk Assembly with 1 bracket and 1 of the following disks:, | n/a |  
|  | Hitachi HDS725050KLA360 [HDS7250SASUN500G](500GB - 7200 RPM - SATA Disk)
 | n/a |  
|  | Seagate ST3500630NS [ST35000NSSUN500G](500GB - 7200 RPM - SATA Disk)
 | n/a |  
|  | Hitachi HUA721050KLA330 [HUA7250SBSUN500G](500GB - 7200 RPM - SATA Disk)
 | n/a |  
|  |  | n/a |  
| XRB-ST1CE-1T7K
 [S] | 540-7506 [C] | 1TB - 7200RPM SATA, Disk Assembly with 1 of the following disks:, | n/a |  
|  | Hitachi HUA721010KLA330  [HUA7210SASUN1.0T](1TB - 7200 RPM - SATA Disk)
 | n/a |  
|  |  | n/a |  
| XRC-ST1CE-250G7K
 [S] | 540-7511 [C] | 250GB - 7200RPM SATA, Disk Assembly with 1 bracket and 1 of the following disks:, L | n/a |  
|  | Seagate ST3250820NS [ST32500NSSUN250G](250GB - 7200 RPM - SATA Disk)
 | n/a |  
|  | Seagate ST3250310NS [ST32502NSSUN250G](250GB - 7200 RPM - SATA Disk)
 | n/a |  
|  |  | n/a |  
| Table Legend |  
| [F] = Field Replaceable Unit (FRU) [C] = Customer Replaceable Unit (CRU)
 [S] = Supported, but can no longer be ordered with this system
 [N] = No longer supported for this system
 Price = Price this Part
 |  |