\Please note, pictures showing the monitor (not included) are so that you can see the server's fresh Ubuntu server install it comes with. I do this so that I can run the LSHW (list hardware) command which shows you all the detected hardware and specs. Also in the pics are the circled cosmetic defects including a crack near the rear handle.
System Overview

• Brand / Model: Dell PowerEdge R815
• Form Factor: 2U Rackmount [1]

Compute & Processing

• Processors Installed: 2x AMD Opteron 6134 (8 Cores / 8 Threads each)
• Total Physical Cores: 16 Cores
• Base Clock Speed: 2.30 GHz
• Processor Sockets: 4 Sockets total (2 populated, 2 empty/available for upgrades) [1]

Memory (RAM)

• Total Installed Capacity: 16 GB
• Configuration: 8x 2GB modules
• Memory Type: DDR3 Synchronous Registered ECC (Buffered) 1333 MHz
• Total DIMM Slots: 32 slots total (24 remaining slots empty for expansion) [1, 2, 3]

Storage & RAID Controllers

• Storage Controller: Dell PERC H700 SAS / SATA RAID Controller (equipped with onboard hardware cache)
• Drive Configuration: Includes 1x 79GB Boot / Storage volume (configured under the PERC H700) [with Ubuntu server installed for test and the pictures LSHW purposes]
• Optical Drive: Internal SATA DVD-ROM Drive (Model: DV-28SW) [1]

Networking & Connectivity

• Onboard Network Interface: 4x Embedded NetXtreme II BCM5709 Gigabit Ethernet Ports (eno1, eno2, eno3, eno4)
• Expansion / Fibre Channel: Equipped with a Zephyr LightPulse Fibre Channel Host Adapter (for SAN/external storage connectivity)

Graphics & Interface

• Integrated Video: Matrox Electronics MGA G200eW WPCM450 PCI Graphics Controller
• Rear I/O Expansion: High-lane count PCIe connectivity via internal PEX 8624 switches

Includes 2 power supplies