As described, passively cooled industrial mini PC. Compared to the "other" similar model with 6*RS232 ports, this one has full wiring in those RS232 ports (the other has 3 wires per port, TX/RX/GND, and ports 5 and 6 support RS485 with jumpers). This has two DDR3L SO-DIMM module slots, so this can support 2x8GB of RAM, the other model has only one slot and can support 1x16GB with the "largest" CPU i7-5500U only. BIOS has lots of detailed settings and supports PXE network boot (other model has no net boot in BIOS). Reasonable price of USD 103.89 each (Pentium 3805U, no RAM, no WiFI) with DHL shipping which was really fast to FI. Ordered 5pcs, one had problems with LAN2 and one was actually a Pentium 3825U (Hyperthreading enabled).