This listing is for a 3.5-inch hard drive enclosure only. The hard drive is not included, so it is considered junk. Originally, a 250GB hard drive was installed, but it is not included. Power-on tested. Included: USB cable Power cable 3 hard drive mounting screws Although not pictured, a FireWire cable is also included. No box I am not very knowledgeable, so please check the photos for details. Those who are knowledgeable, please purchase. Sleep function available. Please understand that this is a used item before purchasing.