1.  (1) external 5.25" drive bay
2.  300 W power supply
3.  Rear I/O includes: (4) USB 2.0 ports, RJ-45 Ethernet Port, DVI-D and VGA video ports, audio in/out jacks (5.1 channel audio out)
4.  Front I/O includes: (2) USB 2.0 ports, dedicated headphone port, microphone jack
5.  (1) internal 3.5" hard drive bay
6.  (3) PCIe x1 slots, (1) PCIe x16 slot, (1) MiniPCIe slot
7.  USB Scroll Mouse
8.  HP USB Standard Value Keyboard
9.  HP Monitor (sold separately)