Summary: Got 2 one each computer upstairs all the way across the house - 1 computer only has 1 usb 2.0 which took a little while to figure out. Only works with usb 2.0 otherwise underpowered. Has 2 usb thingys to put into usb slots into computer, as one computer was very underpowered, put one into usb 2.0 (the main one) and one into usb 1.0 for additional power for the device. Other computer had 2 usb 2.0 thingys to put into the thingy that connects to the antenna thingy.
Summary: Great USB Dual Band N adapter USB300WN2X2D Normally I wait a few months to write a review but given the small number of reviews for this guy (2) I decided to go ahead and get some info out there. I will come back and annotate if this thing gives me any problems. I cannot comment on it's longevity as yet but I have no reason to suspect it will fail prematurely as it runs very cool and Startech gives it a 2 year warranty.
Summary: Strong signal, works well with both 5GHz and 2.4GHz Wifi. One item to be aware of - the included driver is several years old and the newer one needs to be downloaded to work reliably with Win 7 or higher. We have not needed to use the secondary power USB cable - just the primary.