- Intel Skylake / Kaby Lake-U Celeron Processor 15W
- Embedded Long-life 3.5" SBC Series, Planned Lifecycle Through Q4’2022
- CPU on Bottom for Easy Integration into Fanless Systems
- 4 * Intel Gigabit LAN, 2 * mini PCI-E, 1 * mSATA
- Built-in +12V Locking Power Jack, optional TPM 1.2/2.0
- ECO-design for EuP/ErP

Specification
Jetway NF731 3.5" SBC Motherboard
ProcessorFanless Intel® Celeron 3965U/3955U/3865U/3855U, Skylake-U/Kaby lake-U 15W Processors
* Ships with flat heatsink installed for direct attaching to chassis
Memory1 x 260-pin SODIMM un-buffered DDR4-2133 up to 16GB
GraphicsIntel HD Graphics 610/510, 300MHz - 900MHz
AudioNA
LAN1 x Intel i219-LM PHY Gigabit LAN
3 x Intel i211-AT PCI-E Gigabit LAN
Storage1 x SATA3 6Gb/s Connector
1 x mSATA
Super IOFINTEK F81768D
TPMIntel fTPM 2.0 (PTT) Trusted Computing Firmware
OEM Option: Onboard TPM v1.2 or v2.0
Back Panel Connectors
1 Serial Port (RS232)
4 RJ45 LAN (10/100/1000)
2 USB 3.0
1 +12V 2.5mm Diameter Locking DC Power Jack

Onboard I/O Connectors
1 SATA3 6Gb/s Connector
1 mSATA Slot (Full-size)
2 Mini PCI Express Slot (1 * Full-size, 1 * Half-size)
1 Serial Headers (RS232/422/485)
2 USB Pin Headers for up to 3 additional USB 2.0 Ports
1 19-pin HDMI 1.4 Header (4096 * 2304 @ 24Hz)
1 SIM Card Socket
1 8 bit GPIO Header
1 AT/ATX Mode Jumper
1 Chassis Intrusion Header
1 7-pin PS/2 Mouse/Keyboard Header
4 2-pin LAN LED Header
1 5-pin SMBUS Header
1 4-pin Fan Header
1 4-pin Floppy Power Output (Male)
1 2-pin +12V Alternate Power Connector
Power Supply for NF731
External Power Supply – the board can be powered with a +12V external power supply though a locking DC connector on the back panel. The rear +12V DC jack accepts locking plugs with an inner diameter (ID) of 2.5 mm and an outer diameter (OD) of 5.5 mm, where the inner contact is +12V and the shell is GND.

Internal Power Supply – the board can alternatively be powered via the internal +12V 2-pin power connector, where pin 1 is +12V and pin 2 is GND. The internal 2-pin power connector accepts a JST VHR-2N or TE 1-1123722-2 plug from the power supply.

Caution: There is no isolation circuitry between the external +12V DC jack and the internal 2-pin power connector. It is the system integrator's responsibility to ensure no more than one power supply unit is or can be attached to the board at any time and to ensure the external +12V DC jack is covered if the internal 2-pin power connector is to be used.
Market Segments Supported
√ Networking/Storage Server/Mail Server/Print Server
√ Industrial Automation/Control
√ Medical
√ IoT
Ordering Info
Part Number Description
JNF731-3855U 3.5" SBC motherboard with Celeron 3855U
JNF731-3865U 3.5" SBC motherboard with Celeron 3865U
JNF731-3955U 3.5" SBC motherboard with Celeron 3955U
JNF731-3965U 3.5" SBC motherboard with Celeron 3965U
G01-SATA3-BL-1F (Incl) SATA3 cable
G01-2X10A-HDMI-F (Incl) HDMI cable
G01-COM-H2M22-1F (Incl) COM cable
G02-DVD22-A13-WF (Incl) DVD driver disk
G01-PW4PS-2S-323F (Incl) Y power cable
OS Support List
Windows Linux
Windows 7 32bit/64bit CentOS 7.0
Windows 8.1 64bit Debian 8.8
Windows 10 64bit Fedora 25.13
Windows Embedded 7 SP1 32bit/64bit openSUSE 42.3
Windows Embedded 8.1 64bit Ubuntu 16.10
POSready 7 32bit/64bit pfSense 2.3.2
Win 10 IoT Enterprise 64-bit RedHat 7.3
Downloads
NF731-3855/3865 BIOS A02 Release Date 2018-5-25
Description Update Microcode for INTEL-SA-00088 (CVE-2017-5715).
Download  F731BA02.zip
Installation Instructions for DOS 1. Prepare a MS-DOS bootable USB flash drive.
2. Download the zip file.
3. Unzip the file and copy to the USB flash drive.
4. Reboot the PC into MS-DOS mode and run *.bat in command prompt.
5. Wait in suspense until the update finished.
Revised History [A01]. Initial BIOS.
NF731-3955/3965 BIOS A02 Release Date 2018-6-1
Description Update Microcode for INTEL-SA-00088 (CVE-2017-5715).
Download  F731PA02.zip
Installation Instructions for DOS 1. Prepare a MS-DOS bootable USB flash drive.
2. Download the zip file.
3. Unzip the file and copy to the USB flash drive.
4. Reboot the PC into MS-DOS mode and run *.bat in command prompt.
5. Wait in suspense until the update finished.
Revised History [A01]. Initial BIOS.

· Please do not flash the BIOS UNLESS your system has a BIOS-related issue. Flashing the wrong BIOS can cause irreparable damage to the system.
· Please be aware that by flashing this BIOS you agree that in the event of a BIOS flash failure, you must contact your dealer for a BIOS replacement. There are no exceptions to this policy. Jetway does not have a policy of replacing BIOS chips directly with end users.


Drivers for NF731
  Windows 7 (32/64 bit) Windows 8.1 (64 bit) Windows 10 (64 bit)
Chipset  inf_w8_w10.zip  inf_w8_w10.zip  inf_w8_w10.zip
Graphic  7_32_bit / 7_64_bit  8_64_bit  10_64_bit
LAN  Intellan.zip  Intellan.zip  Intellan.zip
ME  ime_skylake_win7.zip  ime.zip  ime.zip
USB 3.0  usb30_win7.zip Built-In Built-In
TPM Hotfix  7_32_bit / 7_64_bit  NA  NA
Manual
1.0  G03-NF731-F.pdf
Resources
FCC  FCC
CE  CE
RoHS  RoHS
Power Consumption Report  Power Consumption Report
Temperature Test Report  Temperature Test Report
Watchdog/GPIO sample code  Watchdog and GPIO sample code for Windows and Linux