- Intel Gemini Lake Celeron J4125 J4105 Processors, 10W
- Gemini Lake is Non-Embedded, Planned Lifecycle to 2022
- 260-pin SO-DIMM DDR4-2400 up to 8GB
- Supports 2 Displays, 2 x HDMI 4K @60Hz
- 12V DC-In & M.2 SATA & Mini PCI-E
- ECO-design for EuP/ErP

Model Number JBC420P891
Part Number HBJC420P891-4125B
Motherboard Specification
CPU Fanless Intel® Celeron J4125 Processor Quad Core 2.00 GHz - 2.70 GHz, 10W TDP
Fanless Intel® Celeron J4105 Processor Quad Core 1.50 GHz - 2.50 GHz, 10W TDP
Memory 1 * 260-pin SO-DIMM DDR4-2400 up to 8GB Total
Graphics Intel® HD Graphics 600
LAN 1 x Realtek RTL8111H Gigabit LAN
Audio Intel® Display Audio (via HDMI)
Storage 1 x 32GB eMMC
1 x M.2 SATA 2242
WiFi / Mini-PCIE / SIM 1 x Full size Mini-PCI Express Slot
1 x Micro SIM Card Slot
Chassis Specification
Product size 129 * 109.4 * 34 mm
Material Lightweight aluminum alloy with extruded aluminum IO panel
Color Black
Storage Bay NA
Front I/O Port 1 * Power Button with LED
2 * USB 2.0
Rear I/O Port 1 * +12V 2.5mm Diameter DC-In Power Jack
2 * USB 3.0 Ports
2 * HDMI 2.0 (4096 x 2160 @ 60Hz)
1 * Micro SIM
1 * RJ-45 Port
1 * Kensington Lock Hole
3 * Antenna Holes
Power Adapter : AC_90~240V / DC_12V/40W
Environment Operating Temperature : 0°C ~ 50°C with air flow
Storage Temperature : -20°C ~ 80°C
Functional Digital Security, Digital Signage, Cloud Applications, IoT
Certificate CE,FCC,ErP For Barebone
CE,FCC,TUV,UL,CCC,CB,ErP For Power Adapter
Ordering Info
Part Number Description
HBJC420P891-4125B Fanless J4125 Barebone with 32Gb eMMC
HBJC420P891-4105B Fanless J4105 Barebone with 32Gb eMMC
HCS310MWM01B-F (Incl) WALL/VESA/DIN Rail Mount (Black)
LCSCHBJC3XX-F (Incl) Screw pack
L01AS050-F (Incl) 40W/12V/3.3A L6 EN62368-1 2.5/5.5mm non-locking AC Adapter
OS Support List
Windows Linux
Windows 10 64bit ver. 1709 or newer CentOS 18.10
Win 10 IoT 2019 Enterprise 64-bit Fedora 29.1.2
openSUSE 15
Ubuntu 18.04
pfSense 2.4.4
FreeNAS 11.2
RedHat Enterprise 7.5
Andriod x86 8.1_rc2
JBC420P891 BIOS A05 Release Date 2021-11-30
Description Update OS Select Options.
Download  BAUAJA05.zip
Installation Instructions for UEFI 1. Unzip the file and copy to the USB flash drive with FAT32 format.
2. Insert USB and press [F7] on boot to select "UEFI: Built-in EFI Shell"
3. Type "fs0:" to change path when you see Shell prompt.
4. Type "BAUAJA05" to auto update BIOS.
5. Power off the system after the update finished.
Revised History [A04]. Support mini PCIe to M.2 Daughter Boards.
[A03]. Support ALC888 Audio.
[A02]. Update Microcode for INTEL SA-00233.
[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 JBC420P891
  Windows 10 (64 bit)
Chipset  inf.zip
Graphic  gfx.zip
Sound  audio.zip
LAN  rtllan.zip
ISH  ish_g.zip
TXE  txe_g.zip
Quick Installation Guide  G03-JC420QIG02-F.pdf
Motherboard Manual  G03-NP891-F.pdf
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