synology rail kits fixed, rkm114overviewthe synology rkm114 (harddrive set) is a solid-state and easy-to-install design that supports most synology 1u rackstation models. rkm114 is subject to a one-year limited warranty from synology.valid modelsseries 16: rs816series 15: rc18015xs +, rs815 (rp) +, rs815, rx415series 14: rs814 (rp) +, rs814series 12: rs812 (rp) +, rs812series 11: rs411series 10: rs810 (rp) +, rx410series 9: rs409 (rp) +, rs409, rx4specifications:a. the width of the post to be fixed to the wall must be equal to or exceed 451 mmb. the width of the panel must be equal to or exceed 480 mmc. mounting depth: 570mm ~ 720mm (for series13 and earlier 1u models)mounting depth: 570mm ~ 810mm (for series 14 and future 1u models)