I purchased this some time ago and have been storing it. I have performed a simple operational check. Product Details 100/10M Switching Hub 16-Port LSW-TX-16NP ● Compact plastic casing, high-performance, high-reliability 10M/100M switching hub. ● Uses Japanese electrolytic capacitors for a power supply lifespan 2.5 times longer than conventional models, with low power consumption of up to 7.0W. ● Simple design allows for stacking, vertical placement, and wall mounting*. The footprint is 75% the size of a C-company product. *Please prepare wall mounting screws separately, referring to the recommended screw dimensions diagram below. ● Built-in power supply for a tidy wiring setup. ● Standard magnetic backing for convenient attachment to the side of a desk. ● AUTO-MDIX function on all ports automatically detects straight/crossover cables. This avoids communication problems caused by incorrect cable connections and further improves usability. ● All ports equipped with 10M/100M Full-Duplex/Half-Duplex Auto-negotiation function. ● Full-fledged support for flow control (IEEE802.3x, back pressure). ● Equipped with a bad packet filtering function. ● Uses store & forward transfer method. ● LED indicators for Link/Active, 100M/10M, and Power for visual recognition. ● Compliant with safety standard VCCI Class B.