I am running Centos 5.8 64bit with elastix 2.3 VOIP phone system on the Intense PC with 16GB Crucial 1333 Mem, 256GB Samsung 830 SSD 3 drive and the Intel Core i7 Proc. This system has 100 Yealink HD phones for Cubes and 45 Polycom 670 sets for the offices. It is runing for 3 days without issues.
Zotac Z77-ITX WiFi 3rd Gen Core Socket 1155 Mini-ITX Motherboard with 4x SATA, 2x LAN and mSATA
Zotac Z77-ITX WiFi Mini-ITX board with Intel Z77 Express chipset supporting Intel 2nd and 3rd Gen Core LGA1155 processors with integrated Intel HD graphics and 8 channel Audio; PCI Express 3.0 x16; Up to 16GB of DDR3 RAM; 2x Gigabit LAN; 4x SATA with RAID 0, 1, 0+1, 5; 1x Mini PCI Express slot supporting mSATA; Mini DisplayPort (supporting up to 2560x1600 @ 60Hz) & 2x HDMI graphics outputs (supporting up to 1920x1200 @ 60Hz); S/PDIF; 4x USB 3.0 (inc 2 internal); 8x USB 2.0 (inc 4 internal); 802.11n/g/b (300 Mb/s) WiFi and Antenna (Bluetooth supported).
Rear Panel Connectors: 4x USB 2.0; 2x 802.11n WiFi Antenna; Clear CMOS Button; PS2/Mouse Port; 2x USB 3.0 (coloured blue); 2x Gigabit LAN; 2x HDMI; Mini DisplayPort; 5x switchable 3.5mm audio connectors; S/PDIF optical digital audio out.
Board connectors: 24pin ATX Main power connector (20pins can be connected, but the 12V P4 connector must be connected); Processor core power connector (12V 4pin P4); SATA connectors: 2x SATA 6Gb/s (coloured blue), 2x SATA 3Gb/s (coloured red); 2x Front panel USB 2.0 headers (for 3 ports); 1x Front Panel USB 3.0 header (19pin, for 2 ports); 2x 240-pin DDR3 DIMM Sockets; PCI Express 3.0 x16 bus add-in card connector (3.0 graphics cards supported only with 3rd Gen Core processor); Vertical Half-Height Mini-PCI Express card slot (populated with WiFi card); Mini-PCI Express slot (supports Half/Mini sizes, also supports mSATA); S/PDIF out header; Front panel audio header; Reset Switch, Power Button; Clear CMOS Jumper; System and Processor fan headers; Speaker Header; .
Onboard RAID: The Z77-ITX supports Intel Rapid Storage Technology which provides the following RAID levels via the Intel H77 Express Chipset: RAID 0 - data striping; RAID 1 - data mirroring; RAID 0+1 (or RAID 10) - data striping and mirroring; RAID 5 - distributed parity.
If the front panel could be 4 LAN ports and 4 USB ports, then the hardware for learning should be perfect such that we could build very powerfully N-WAN and N-LAN router.