DELL PE2950 III 2U RACK Quad Core Xeon E5405 2.0GHz(2×6MB cache 1333MHz FSB), no RAM, no FDD, DVD/CD-RW, 1×6 Backplane 3.5", no HDD, PERC 6/i RAID 256MB cache (SATA or SAS Hot-Plug HDD), 2x PCIe x8 and 1x PCIe x4, 2×1Gb NIC, 1 × 750W PSU

DELL PE1950 III 1U RACK Quad Core Xeon E5420 2.5GHz(2×6MB cache 1333MHz FSB), no RAM, no FDD, 1×4 Backplane 2.5", no HDD, DVD/CD-RW, PERC 6/i RAID 256MB cache (SATA or SAS Hot-Plug HDD), 2x PCIe, 2×1Gb NIC, 1 × 670W PSU

DELL PE1950 III 1U RACK Quad Core Xeon E5405 2.0GHz(2×6MB cache 1333MHz FSB), no RAM, no FDD, 1×2 Backplane 3.5", no HDD, DVD/CD-RW, SAS 6iR (SATA or SAS Hot-Plug HDD), 2x PCIe, 2×1Gb NIC, 1 × 670W PSU

DELL R200 1U RACK Quad Core Xeon 3220 2.33GHz(2×4MB cache 1066MHz FSB), 2GB ECC (2×1GB Dual Rank) RAM, no FDD, 1×2 Backplane 3.5", 2 × 250GB SATA HDD, DVD/CD-RW, SAS 6iR controller (SATA or SAS non Hot-Plug HDD), 1x PCIe x4 and 1x PCIe x8, 2×1Gb NIC, 1 × 345W PSU NBD

DELL PE840 Dual Core Xeon 3050 2.13GHz(2B cache 1066MHz FSB) 2GB ECC DDR2 667MHz (2 × 1GB Dual Rank DIMMs) FDD DVD/CD-RW 4 × 3.5" Hot-Plug Backplane 3 × 250GB 7.2K SATA HDD PERC 5/i RAID 256MB cache (SATA or SAS Hot-Plug HDD) 2x PCIe (x8 and x1) 2x PCI-X and 1x PCI 1Gb NIC 1 × 420W PSU