The Cables to Go USB to Serial DB9 SuperBooster Wall Plate essentially takes a serial (in HT terms RS-232) signal and converts it to USB. I'm used to getting strange boxes in the mail… it happens all ...

DB9 serial isn't going to provide enough, ... Even if you splice off the USB cable prior to the USB>Serial adapter you can only pull 5V@500mA from a single USB port. ...

i have two different usb-to-serial adapter, both of which are based on the pl2303 driver/chipset. i have tried both cables with both adapters and cannot get onto the console of the switch.