Edimax EW-7811Un Wireless USB Adapter

I forgive 5 stars for this product because it works as advertised and is also compatible to update my Raspberry Pi B + 100%. The interior is thanks to the good descriptions which can be found on the internet is no problem. The sleep mode is activated in the delivery state can (should) be disabled. For speed, I can not say much, but on the reliability. The drive has been running since more than three weeks without interruption. That's very important to me because the Raspberry Pi is based on an alarm system and in the event of an alarm an e-mail will be sent in addition to a SMS. This worked so far with each test in continuous use.