General Features:

• Microsoft Windows 10 Professional 64-bit pre-installed w/Microsoft Authorized Refurbished (MAR) CoA
• Intel Xeon E5-1650 Six-Core 3.2GHz processor
• 3.8GHz Max Turbo Frequency, 12MB Smart Cache
• 4 GB DDR3 ECC Unbuffered RAM
• 500 GB SATA hard drive 
• DVD±RW  LightScribe drive
• NVIDIA Quadro NVS 290 256MB PCI Express video card installed
• Integrated Realtek ALC262 audio
• Integrated Intel Gigabit Ethernet Controller
• Integrated FireWire
• Integrated 6-channel SATA controller
  
  

Motherboard Features:

• Two (2) PCI Express Gen3 x16 slots (one occupied)
• One (1) PCI Express Gen3 x8 slot
• One (1) PCI Express Gen2 x8 (x4) slot
• One (1) PCI Express Gen2 x4 (x1) slot
• One (1) PCI slot
• Eight (8) 240-pin DDR3 DIMM slots (four occupied)
• Two (2) 6 Gb/s SATA ports, Four (4) 3 Gb/s SATA ports, RAID 0, 1, 5, 10 capable
  
  

Front I/O Ports:

• One (1) USB 2.0 port
• Two (2) SuperSpeed USB 3.0 ports
• One (1) 6-pin IEEE 1394 FireWire port
• One (1) 3.5 mm Microphone in jack
• One (1) 3.5 mm Headphone out jack
  
  

Rear I/O Ports:

• Two (2) PS/2 ports
• One (1) DMS-59 port (on video card) 
• One (1) 6-pin IEEE 1394 FireWire port
• Four (4) USB 2.0 ports
• Two (2) SuperSpeed USB 3.0 ports
• One (1) RJ-45 Ethernet port
• 3.5 mm Line in, line out, microphone jacks
  
  

Case Features:

• Three (3) 5.25-inch external drive bays (one occupied)
• Three (3) 3.5-inch internal drive bays (one occupied)
• 600-watt power supply (100 - 240V, 50/60Hz) 
  
  

Unit Dimensions:

• 17.5 x 7.0 x 17.63-inches (H x W x D, approximate) 

Includes:

• HP Z420 Workstation Xeon E5-1650 Six-Core 3.2GHz  Tower System
• Microsoft Windows 10 Professional 64-bit pre-installed w/Microsoft Authorized Refurbished (MAR) CoA
• DMS-59 to Dual DVI-I cable
• Power cord