I recently ordered this ac adapter off of ebay for my 2600. I was looking for an oem one, because those are the best to use. Anyways, I got this in the mail and I just haven't ever seen anything like this one before. The two things that I thought were odd was that first: It was was made in China. And second: the box has rounded edges. Do you guys know if this is oem, or have you ever seen any like this. (I don't have a camera so here's the ebay ad. It looks just like the picture on the box, except it has voltage specs etc. on the front too. It's also ended so just scroll down a little.) Thanks in advance! eBay Auction -- Item Number: 390458752431