Shimano Altus RD-M2000 SGS Shadow DA 9-speed rear derailleur matched the Shimano 7-speed system - YouTube
Altus Rear derailleur offering Crisp Performance on- and Off-Road for 9-Speed drivetrains. Wide Link Design Increases Design and Service Life. 11-Tooth Pulleys for Reduced Pulley wear and Chain
SHIMANO ALTUS Right Shift Lever 9-speed | SHIMANO BIKE-EU
SHIMANO ALTUS M2000 3×9v 27speed Groupset M2010 R/L Shifter M370 Rear Derailleur SHADOW for MTB Bike Bicycle Original parts|Bicycle Derailleur| - AliExpress
SHIMANO ALTUS M2000 | SHIMANO BIKE-EU
Shimano Altus M2000 SGS 9 Spd MTB Rear Derailleur - Cambria Bike