This Sun 3/280 server started life as a 3/180. The CPU and memory boards have been upgraded to the higher performance 3/280 versions.
The Sun 3/280 is at the bottom of the cabinet.
The Fujitsu 1/2" 9-track tape drive is in the middle.
A Wellfleet Backbone Node router is at the top.
From left to right the boards are: 3/280 CPU, 8MB RAM, 8 MB RAM, filler, filler, SCSI, 1/2" mag tape, Ethernet, SMD, filler, SMD.