The two memory slots are located on the right edge of the board and support Dual Channel 1.5v DDR3 modules operating at 800 / 1066 / 1333 and 1666 MHz. Each slot can support a maximum capacity of 4GB for a total of 8GB of system memory as well as support for Extreme Memory Profiles (XMP).
Across the top of the board is the 24-pin ATX power connector, front panel connectors, two sets of USB 2.0 headers, four SATA connectors, a debug port, system fan header and a CPU fan header. Just below the ATX power connector is a series of LEDs that indicate the current power phase being used. The number of lighted LEDs indicated the CPU load. To enable this, you first need to enable Dynamic Energy Saver 2.
The rear I/O panel consists of the following connections, from left to right: Two USB 2.0 ports, PS/2 mouse / keyboard port, VGA port, DVI port, Optical S/PDIF Out connector, HDMI out port, two additional USB 2.0 ports, an eSATA port, Ethernet Port, two USB 3.0 ports and a complete set of audio connectors consisting of: Center / Subwoofer Out, Rear Speaker Out, Side Speaker Out, Line In Jack, Line Out Jack and Mic In Jack.
The back of the board has more various chips than we are used to seeing. One would assume this is because there simply wasn't enough room on the front for them.
Let's continue ahead and take a look at the hardware we will be using with the H55N-USB3.