I search for NUC/Mini-PC and found some with a configuration that would suit my needs.

Configuration :

• Quad core
• Multiple Display support
• Dual Ethernet ports
• Optical SPDIF Audio interface.
• Multiple Sata support

I found the GB-BXi7-4770R and the ZBOX-EI751. I decided to go for the Zotac as it has dual Ethernet port and a newer processor.

My system is made of :

• ZBOX-EI751
• Crucial MX200 250GB mSATA - CT250MX200SSD3
• Kingston Impact - 16GB - DDR3L 1866MHz - HX318LS11IBK2/16
• WD Black 750GB - WD7500BPKX

The Kingston Impact HX318LS11IBK2/16 works in this system. The RAM has to be DDR3L. CPU-Z reports a RAM voltage of 1.35V.

Looking for some information about EI751 online, I found information about an onboard SATA connector in addition to the mSATA and 2.5" SATA connector. It turns out that the BIOS do list an additional SATA port but the actual SATA connector is not populated on the motherboard. They could have done us a favor by populating those connector ( SATA and COM1 ). I may populate them if i find suitable connector but I'll wait to break the warranty seal.

I wanted to be able to use 2 digital full HD monitors. The EI751 has 3 display output ( 2 x DisplayPort and 1 DVI ). I connected my LCD to the DVI port with the provided HDMI adapter and I was surprised to have audio support.

I was unable to use 3 display simultaneously under Windows 7. Windows screen resolution pops Unable to save display settings error. Asking Zotac about it, they say The EI751 supported three display outputs at the same time under Windows. But no further information about it. Intel Iris Pro Graphic 6200 is not listed in 3 Displays FAQ ! Need to check under Linux.

The I7-5775R processor support a wide range of frequency steps.