5 usb connectors (internal), 6 speaker connector (j34), 7 spdif-out (j33) – Kontron KTQM87-mITX User Manual
Page 36: Usb connectors (internal), Speaker connector (j34), Spdif-out (j33), Usb connectors (internal) 7.5, Speaker connector (j34) 7.6, Spdif-out (j33) 7.7

KTD-N0886-A
Page 34
Internal Connectors
KTQM87/mITX Users Guide
USB Connectors (internal)
7.5
The following USB2.0 ports are available on Internal Pinrows:
USB2.0 Port 8 and 9 are supplied on the internal FRONTPNL connector (J12).
See “Front Panel Header” description.
USB2.0 Port 12 and 13 are supplied on the internal mPCIe connectors (J14 and J13) witch have included
mSATA and USB connections. See “PCIe Connectors” description.
Speaker connector (J34)
7.6
The headphone interface is available through the connector J34 (4 pins). These outputs are shared with
the Speaker Audio Jack connector (green).
Up to 100 dB Signal-to-Noise Ratio (SNR).
Header
Pin
Signal
Type
4
HPOUT-R
AO
3
GND
PWR
2
HPOUT-L
AO
1
GND
PWR
SPDIF-Out (J33)
7.7
The digital audio interface (electrical SPDIF-Out) is available through the 2 pin connector J33 and can be
used to implement 8 (7.1) Channel High Definition Audio.
Circuit is based on high fidelity 8-channel HD audio codec which is compatible with Intel HD Audio
specification and supports stereo 24-bit resolution and up to 192 kHz sample rate for DACs/ADCs.
Up to 90 dB Signal-to-Noise Ratio (SNR).
16/20/24-bit S/PDIF TX Outputs supporting 48K/96K/44.1K/88.2 KHz sample rate
Header
Pin
Signal
Type
2
GND
PWR
1
SPDIF_OUT
O-3.3
1