The eBOX100-51R-FL is a fanless ultra-compact embedded system with weight 600 grams only. As the smallest embedded system with Intel® Core™ ULT processor onboard, the eBOX100-51R-FL continues the design elements of eBOX100 series – ultra-slim form factor, rugged design, and rich I/O connectivity, allowing greater flexibility and a wider range of application in edge computing, IIoT gateway and extended fields. The eBOX100-51R-FL is powered by the high-performance Intel® Core™ i5-7300U or Intel® Celeron® 3965U processor. The front-facing I/O connectivity design provides convenient access for easy installation and maintenance. It comes with one DDR4-2133 SO-DIMM slot with system memory up to 16 GB. The eBOX100-51R-FL offers two RS-232/422/485, two USB 3.0 ports, two USB 2.0 ports, two Gigabit Ethernet ports, one DisplayPort++, one AT/ATX quick switch, and two SMA type antenna openings; moreover, the embedded system is equipped with one M.2 Key E 2230 slot for Wi-Fi, one M.2 Key B 2242 for SATA storage, and one screw-type 12VDC power input connector.