-System Information- | Processor | Intel Celeron J3455 Quad Core CPU 1.50 GHz | System Memory | DDR3L 1866 4GB RAM SO-DIMM | Storage | Storage | 32GB eMMC on board | Panel | LCD Size | 21.5" | LCD Panel | TFT LCD | Display Type | Full HD | Resolution | 1920x1080
| Pixel pitch | 0.24795 (H) x 0.24795 (V) (mm) | Luminance | 250 cd/m²
| Contrast ratio | 3000 | Viewing angle | 178 (U), 178 (D), 178 (L), 178 ( R)
| Response time | 30ms | Backlight | LED | Touch Type | Projective Capacitive | Touch Light Transmission | 85% | I/O | External I/O Connector | 1 x Power jack
1 x HDMI
2 x USB 3.0 Type A
1 x RJ45
1 x Headphone Jack
1 x Power button
| Internal I/O Connector | 1 x Micro USB
1 x USB interface , 1 x DMIC interface
1 x USB touch interface
1 x M.2 B-Key(3042)
1 x M.2 E-Key(2230)
1 x touch button control(power/vol/brightness)
1 x Power interface (12~24V)
1 x LVDS
1 x AMIC interface
1 x Speaker interface
1 x JSEN1 interface (I2C x2)
1 x RS232 (Tx/Rx/Rts/Cts) interface
1 x RS232 (Tx/Rx/Rts/Cts) , RS485 (Tx/Rx/Rts/Cts)
1 x JGPIO1 (GPIO 16bit)
1 x RTC Battery interface
1 x Micro SIM Card socket for LTE module
1 x Micro SD slot
| Wireless Communication | WLAN | 802.11 a/b/g/n/ac | Display | Multiple Display | LVDS + HDMI
| Certifications | Certification Information | CE, FCC Class A | Mechanical & Environmental | Operating Temperature | 0°C ~ 40°C | Storage Temperature | -20°C ~ 60°C | Operating Humidity | 40°C @ 95% Relative Humidity, Non-condensing | Dimension (W x L x H) | 515 x 322 x 53.7 mm | Weight | 4.3kg | Power Requirement | DC 12~24V Input | Power Mode | DC Jack, DC input 4pin header
| Software Support | OS Information | 2019 Windows 10(64 bit) | Ordering Information | Ordering Information | OFT-21W04-3411-A1R_OFT-21W04-4G_32G-Win10
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