On Board Peripherals

The Pentium N3150 CPU supports two SATA-600 ports, and the ASRock N3150B-ITX motherboard brings only those two ports, seen in Figure 4.

ASRock N3150B-ITXFigure 4: SATA ports

The ASRock N3150B-ITX offers six USB 2.0 ports, two at the rear panel and four available through two headers located on the motherboard, and four USB 3.0 ports, two at the rear panel and two available through a header.

The motherboard does not support FireWire or Thunderbolt ports.

A highlight of this motherboard is the presence of one legacy serial port and one legacy parallel port at the rear panel, along with a second serial port through a header at the motherboard (you need to purchase an adapter separately to use it).

The motherboard supports 7.1 audio format, generated by the processor with the aid of a Realtek ALC887 codec, which is a decent codec for the average user, offering a signal/noise ratio (SNR) of 97 dB for the analog outputs and 90 dB SNR for the analog inputs, with 24 bit resolution and up to 192 kHz sampling rate.

The analog audio outputs are shared, which means if you want to install a 5.1 analog speakers set, you will not be able to use line in and microphone inputs. There is no optical SPDIF output, and no header to install a coaxial SPDIF connector.

The ASRock N3150B-ITX uses Japanese audio capacitors from the brand ELNA, which reduces the noise, according to the manufacturer.

The portrayed motherboard has one Gigabit Ethernet port controlled by a Realtek RTL8111GR chip.

In Figure 6, you can see the motherboard rear panel with PS/2 connectors for keyboard and mouse, legacy parallel and serial ports, VGA output, HDMI output, two USB 2.0 ports, two USB 3.0 ports, Gigabit Ethernet port, and the shared analog audio jacks.

ASRock N3150B-ITXFigure 5: motherboard rear panel

Figure 6 shows the accessories that come with the motherboard.

ASRock N3150B-ITXFigure 6: accessories


Rafael Otto Coelho is a physicist with a master’s degree in Education, and is a college professor in Brazil.