The rack mount bracket is used for mounting the router onto a 19″ standard rack.
It applies to models including Vigor2927, Vigor2927 LTE, Vigor2926, Vigor2926 LTE, Vigor2865, Vigor2865 LTE, Vigor2862, Vigor2862 LTE, Vigor2132, Vigor2830, Vigor2860, Vigor2860 LTE, Vigor2925, Vigor3200, and VigorBX 2000.