This prototype is a bit old (it was seen in 2004), but it is interesting: it’s an Apple Network Server 300.
Apple Network Servers were unique in Apple’s lineup during the 1990s: these were PowerPC-based computers designed by Apple… but incompatible with Mac OS. They ran AIX (IBM’s UNIX) and targeted the professional market. Apple released two very similar models, the 500 and 700: two large towers with multiple drive bays (seven). The difference between them lies in the 700 having a faster CPU, two redundant power supplies, and two additional internal drive bays. However, Apple had apparently planned an Apple Network Server 300.
The codename for this model was Deep Dish, and it was designed for rack-mounted server integration. It had fewer physical security features, a fixed power supply, and significantly reduced expansion capabilities, with only one internal drive and two removable ones. It was equipped with a 200 MHz PowerPC 604, and the person discussing this model also mentioned having seen a version with dual 180 MHz CPUs (which was never sold). The 4U-sized machine had a small LCD screen for displaying basic information, and the prototype seems to have traveled quite a bit… even though this 300 variant was never released.
However, the photos are really small, which is a bit unfortunate.
The small LCD
The removable drives
