Disks Option # Manufacturing Part # Description Previous Part # XRA-SS1CE-146G15K [S] 146GB - 15000 RPM SAS Disk Option, RoHS:Y 540-7088 [C] 146GB - 15000RPM SAS, Disk Assembly with 1 bracket and 1 of the following disks:, RoHS:YL 540-6554 390-0334 Seagate ST3146855SS [ST314655SSUN146G] (146GB - 15000 RPM - SAS Disk), RoHS:Y n/a 390-0338 Seagate ST3146854SS [ST314654SSUN146G] (146GB - 15000 RPM - SAS Disk), RoHS:YL n/a 390-0371 Hitachi HUS153014VLS300 [HUS1514SBSUN146G] (146GB - 15000 RPM - SAS Disk), RoHS:YL n/a 540-6562 1" SPUD Bracket, RoHS:Y n/a XRA-ST1CE-250G7K 2 [S] 250GB - 7200 RPM SATA Disk Option, RoHS:Y 540-6485 [C] 250GB - 7200 RPM SATA, Disk Assembly with 1 bracket and 1 of the following disks:, RoHS:Y n/a 390-0243 Seagate ST3250824AS [STN7225SASUN250G] (250GB - 7200 RPM - SATA Disk), RoHS:Y n/a 390-0246 Hitachi HDT722525DLA380 [HDS7225SBSUN250G] (250GB - 7200 RPM - SATA Disk), RoHS:Y n/a 390-0352 Hitachi HDT725025VLA380 [HDS7225SCSUN250G] (250GB - 7200 RPM - SATA Disk), RoHS:Y n/a 390-0354 Seagate ST3250820NS [ST32500NSSUN250G] (250GB - 7200 RPM - SATA Disk), RoHS:Y n/a n/a 390-0351 Hitachi HDT721616PLA380 [HDS7216SBSUN160G] (160GB - 7200 RPM - SATA Disk), RoHS:Y n/a 540-6562 1" SPUD Bracket, RoHS:Y n/a Option # Manufacturing Part # Description Previous Part # n/a 300-1800 [F] BUY 1000W Power Supply, RoHS:Y