Be careful when ordering this device; there are actually two offerings -- one with a dongle and one w/o. A dongle is a short USB cable that will extend from the computer's USB port to this adapter.

I have two of these and both of them worked immediately out of the box and have transferred bits apparently faultlessly for many months; These adapters should be attached to a USB 3.0 bus; That said, I use one of these for a 100 Mbs connection, though it is capable of 1000 Mbs.

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I use this with my macbook pro and macbook air and I absolutely love it! I frequently transfer from my laptop to my local server and it actually will transfer at gigabit speeds! I have mine always plugged into a USB 3.0 hub as kind of a make shift docking station and it works great!

After reading reviews on other sites, I downloaded and installed the newest drivers before it arrived since the driver disk has old versions. Once it was here, I plugged it in and it was recognized immediately. It works great and frees up the Thunderbolt port on my Macbook Air!

Pretty good dongle. Use it for connecting my MacBook Pro to my PC. Recommended to all MAC users.

USB 3.0; quality

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The built-in Gigabit Ethernet interface on my motherboard failed and could not be repaired. I had to have Gigabit Ethernet to connect to the NAS I had just built; otherwise it was intolerably slow.

Good reviews Works great easy set up

Bought this for a laptop with no ethernet port, with windows 8 no driver required. Not quite gigabit but the bottle neck would be my hard drive in this instance.

Works well with my old dell laptop which has 100Mbps Network Card. We have a 150Mbps download speed provided by rogers, and yet the measured speed was 30Mbps by Ookla. Streams were choppy. Once I installed this device, the streams were very clear and I measured 190Mbps in Ookla. Wow.

I really like it - glad to get for my hybrid laptop use on the go