RainbowImaging R80A Remote Switch for Fujifilm X-S1 X-E1 HS50EXR HS30EXR HS33EXR HS25EXR HS28EXR HS20EXR HS22EXR S205EXR (Black)
Wired Remote Switch for Fujifilm X-S1 X-E1 HS50EXR HS30EXR HS33EXR HS25EXR  HS28EXR HS20EXR HS22EXR S205EXR S200EXR S100FS, replaces RR80A