| Disks | 
| Option # | Manufacturing Part #
 | Description | Previous Part #
 | 
| XRA-SS2ND-300G10K  Price | 540-7867 [C] | 300GB - 10000 RPM SAS, NEBS Compliant Disk Assembly with 1 bracket and 1 of the following disks:, | n/a | 
|  | Seagate ST93000SSUNG [ST930003SSUN300G](300GB - 10000 RPM - SAS Disk),
 | n/a | 
|  | Nemo Bracket with Insulator, 
 | n/a | 
| XRA-SS2ND-600G10K2  Price | 542-0289 [C] | 600GB - 10000 RPM SAS Disk Assembly with 1 bracket and 1 of the following disks: | n/a | 
|  | Hitachi HUC106060CSS600 [H106060SDSUN600G] (600GB - 10000 RPM - SAS Disk)
 | n/a | 
|  | Nemo Bracket with Insulator, 
 | n/a | 
| XRB-SS2ND-300G10K2  Price | 542-0384 [C] | 300GB - 10000 RPM SAS Disk Assembly with 1 bracket and 1 of the following disks: | n/a | 
|  | Hitachi HUC106030CSS600 [H106030SDSUN300G] (300GB - 10000 RPM - SAS Disk)
 | n/a | 
|  | Nemo Bracket with Insulator, 
 | n/a | 
| XRA-SS2ND-146G10KZ
 [S] | 540-7152 [C] | 146GB - 10000 RPM SAS, NEBS Compliant Disk Assembly with 1 of the following disks and brackets, | n/a | 
|  | Seagate ST9146802SS [ST914602SSUN146G](146GB - 10000 RPM - SAS Disk),
 | n/a | 
|  | Hitachi HUC101414CSS300 [H101414SCSUN146G](146GB - 10000 RPM - SAS Disk),
 | n/a | 
|  |  | n/a | 
|  | Nemo Bracket with Insulator, 
 | n/a | 
| XRB-SS2ND-146G10K
 [S] | 540-7866 [C] | 146GB - 10000 RPM SAS, NEBS Compliant Disk Assembly with 1 bracket and 1 of the following disks:, | n/a | 
|  | Hitachi HUC101414CSS300 [H101414SCSUN146G](146GB - 10000 RPM - SAS Disk),
 | n/a | 
|  | Seagate ST9146803SS [ST914603SSUN146G](146GB - 10000 RPM - SAS Disk),
 | n/a | 
|  | Nemo Bracket with Insulator, 
 | n/a |