Arduino Ethernet Shield Rev3

Which one should i buy? Whats the difference? Which is the latest?

I'm looking for Latest Ethernet Shield without POE

http://bit.ly/145Z6YK

Please give me a part number.

Please give me a part number.

http://www.ebay.com/itm/W5100-Ethernet-Shield-For-Arduino-Main-Board-UNO-R3-ATMega-328-1280-MEGA2560-/130976692375?pt=LH_DefaultDomain_0&hash=item1e7ed1b897