Changes
The SNS-101 model was a lighter and more compact redesign of the original SNS-001 model of the SNES. Released at a lower price point, Nintendo marketed it as an entry-level gamer's system for customers who were on a budget and who may have been put-off by the large outlay required for other more modern systems such as the Nintendo 64, Sega Saturn and PlayStation.
The SNS-101 lacks the expansion slot on the base featured on the SNS-001, making it incompatible with the Japan only Satellaview add-on. The power and reset buttons were moved to the left hand side, and it no longer has a cartridge eject button. As with the redesigned NES (NES-101) before it, the SNS-101 model has no LED power light to indicate when the unit is on (as the original NES, SNES, and N64 all included) The RF connector was also removed, however an N64 RF modulator can be used to give the SNS-101 RF output if required.
The SNS-101 features the same "MULTI OUT" audio/video connector used on the original SNS-001 model. However the SNS-101 only outputs composite video and stereo audio through this port, even though the original SNS-001 supported composite video, S-Video and RGB. The video encoder chip used in the system still supports S-Video and RGB, but these pins were left unused. Many users who wished for a better picture resorted to modifying the system to restore this missing functionality.
Read more about this topic: Super Nintendo Entertainment System (Model SNS-101)