The Atari TT030 was Atari's crown jewel of computer systems up until the Atari Falcon030 became available 2 years later.   However its a toss up between the two systems as to which one is better.   Originally the Atari TT030 was to come with a MC68030 at 32Mhz and the units initial run was done with those processors and that speed.   However problems plagued the initial run and 32mhz processors were swapped out and 16mhz version were put in there place.   The later run of TT030's did have issues resolved and were sold in the 32Mhz version.
 

    The TT030 case designed by Ira Velinksy used a unique and attractive module-ized design.  The hard drive and the CPU are seperated from one another in the case and allowed for the hard drive to be easily accessed by one underside screw for upgrades or repair.    The system sported some well designed features including an industry standard VME expansion slot for video and network cards.   Memory was supplied by standard SIMM modules so upgrade and replacement was easily available.   A 720K and then later a 1.44MB 3.5" MS-DOS format compatible floppy drive for easy swapping of data between the TT and an MS-DOS based system.     Although under-used and not exploited to its full potential, the TT030 as well as the Mega STe and the Falcon030 all had Apple local-Talk(tm) compatible LAN ports on them.