The N1100 should be the mono NeXTstation with either the 25mhz or 33mhz 68040 cpu, the cool looking mono Megapixel monitor, non-ADB keyboard, mouse, and soundbox. Typically, they could be had with hard disks of anywhere from 250 to 400meg and 16 to 32meg of RAM. There were plenty of peripherals planned for the NeXT systems, but few actually made it to market. The main ones that did are the NeXT CD-ROM, laser printer, and inkjet printer. Overall, they're a nice system with an interesting OS. According to thier literature, both mono stations carried the N1100 model number, while both Color stations carried the N1200 model. There's usually a sticker on the front/right corner. If it simply says 'NeXTstation' then it has the 25mhz CPU in it. If it says 'Turbo' it has the 33mhz. Jeff -- Collector of Classic Microcomputers and Video Game Systems: Home of the TRS-80 Model 2000 FAQ File http://www.geocities.com/siliconvalley/lakes/6757