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Details:

Description

Feature	IR1821-K9	IR1831-K9	IR1833-K9	IR1835-K9
Memory	4 GB	4 GB	4 GB	8 GB
Pluggable slots (cellular)	1	2	2	2
Wide pluggable slot (Wi-Fi)	1	1	1	1
CAN bus	✓	✓	✓	✓
Ignition power management	✓	✓	✓	✓
Gigabit Ethernet (GE) LAN (x4)	✓	✓	✓	✓
Combo RJ-45/SFP GE WAN port (L3) (x1)	✓	✓	✓	✓
Micro USB console	✓	✓	✓	✓
Power over Ethernet (PoE)/PoE+	–	–	✓	✓
SSD slot	–	–	✓	✓
Automotive dead reckoning GNSS slot	–	–	✓	✓
Digital I/O (x4)	–	–	–	✓
Serial interface	RS-232 (1)	RS-232 (2)	RS-232 (2)	RS-232 (1), RS-232/485 (1)

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