This is a nice vintage piece.  I couldn't determine if it was one of the test models but I'm sure if you're reading this you probably already know.  Check the 3rd to last photo for system and memory details. The disk drive is fully operational, and reads disks fine. Comes with an Apple 45W/M7332 Power adapter.  Also included are IWork 08 and 09 disks, and ILife 11 Disk.  Some of the original literature is with these, but not all. They are in their original packaging and look brand new. Serial no to this is LIV0011X6H78. Don't expect to log on and get your work done quickly. Made in 1999 folks, so slow as molasses. And it is not light either. Message me with questions, and any info you can add so that I can edit the listing. I'm not even sure what generation it is. So help out if you can. Thank you. All my items sold as is, and I reserve TEN BUSINESS DAYS for shipping because life happens.