Remember, this accessory can work with non-Surface tablets too. I noticed some reader confusion about the micro USB port, so I'll try to make this point more clear. Technically, it still allows your Surface to power or interface with other devices that use a micro USB cord.

One micro USB port: Unfortunately neither Surface tablet can charge via USB, so you won’t be using this port to charge them.

One microSD card slot: The Surface already has a microSD card slot, but this lets you keep that slot filled with a card for storage while inserting another card to download images, etc.One SD card slot: The Surface doesn’t have one of these, so the adapter allows you to read a standard SD card without the use of a separate adapter.This adapter would downgrade transfer speeds when using USB 3.0 devices with a Pro. The Surface RT's USB port is USB 2.0 but the Pro's USB port is USB 3.0.

Two USB 2.0 ports: Double the number of ports included with the Surface.Well anyways, after just returning my Rocketfish adapter and buying another one that is working (for cheaper), I would advise this to all other customers since this is an immediate fix to the problem. Days? Weeks? Months!? Once again, the company has to be reliable and when something as trivial as a nonfunctioning adapter is the problem to incomplete work, I'd rather go with a more reliable solution. I am also a little disgruntled since I don't know how long it will take you to come up with a solution either, if there even is one. Sending mixed signals to customers is not good and a company should be on the same page. Is this true or not? I don't know since you are saying something contrary. Also, after speaking on the telephone with a Rocketfish representative, he advised me Rocketfish would not be creating an online driver. Testing should have been carried out prior to OS Mavericks even being released to the public, not after people complained to the company about the problem. Well customers expect a reliable product and you shouldn't really be surprised by their opinions toward Rocketfish right now.

Rocketfish usb 2.0 to ethernet adapter