I ordered this device from Amazon (AEEC) to reclaim some data on old zip disks as my new computer did not have a zip drive. The first drive did not work with my computer (no recognition) so I contacted the seller and he agreed to send me a new drive. Same results. He then send me a newer model that was powered off the USB cable which worked splendidly with my Mac computer. But then one of the old zip disks went in, but would not properly cycle and I could not eject the disk as the computer had failed to "see" itIomega Zip 100 Portable USB Drive (PC/Mac). I wrote and got a prompt reply as how to fix this problem.This seller (AEEC) went out of his way and to some expense to see that I received a properly working zip drive. I think that does not happen every day. At least not to me. I give him a 6 stars for service and a thumbs up.