SYBA SD-EXP20030 5 Ports USB 2.0 ExpressCard 34mm

Pros: There are 5 USB Ports, this provides plenty of expansion room for usb devices. When I plugged this in to my new macbook pro 17" it read it instantly and works just fine. I've plugged 4 devices into it at once to see if they all worked and they worked just fine.

Cons: Is a little bulky but that's understandable considering there are 5 ports.

Other Thoughts: This was a great low cost solution to expanding my macbook pro usb ports I just wish there were one with 5 usb 3.0 ports. I would pick that up for sure.

Pros: 5 ports
2 Powered ports (approx. 500mAmps per powered port)
Easy install
All ports work flawlessly
Comes with 54mm adapter to stabilize the card in the slot if you are adapting this 34mm card to a 54mm slot.
Windows 7 auto recognizes the hardware and loads the drivers automatically, so you don't need to bother with the CD it comes with.

Cons: 3 of the ports are only good for low power draws like thumb drives, but I can't complain because the are still running at the full 480 Mbits/s (the fully utilized ExpressCard rate of 2.5 Mbits/s that's divided among the five ports.)

Other Thoughts: If you need addtional USB 2.0 ports for your laptop, then buy this one. It gives you the most powered ports (2) you'll find on the market (because there is only a 1000 mAmp supply available; divided equally between the two ports yields 500mAmps per port). And you'll get 3 additional low power ports to boot. I definitely recommend this product.