Nice talk with you on Skype.
I have to admit that now your prices 85USD, 155USD and 205USD are more competitive than ours. But if you take the specifications and the functions into consideration you'll find that our products are competitive.
Our models are high power (150W, 300W, 450W) and high switching capacity (20G, 52G, 52G) switches. It compliant with IEEE802.3 at & af at the sample time, midspand and endspand optional. And the high switching capacity guaranteed the best performance when transmitting and processing data packet.
Beyond your requirements, it supports port power supply prioritization to guarantee the continuous power supply of key nodes and many other marvelous functions for easy management and easy installation.
What more, it has some functions to keep you and your devices safe. For example, it supports short-circuit protection function, the switch will automatically start short-circuit function and cut off the power supply when there is high-current or other power failures, efficiently defending against device damage or network failures caused by line fault or wrong installation.
And the price is just a few bucks more, you're worth it.
Thank you for your [color=inherit !important]patience to read this long email.