US Patent 10356932 Cable management device and connecting assembly for rack system

A cable management device includes a first cable management arm, a second cable management arm, a connecting member and a blocking member. The second cable management arm is movable relative to the first cable management arm. The connecting member is movably connected to the first cable management arm. The blocking member is arranged adjacent to a junction area between the first connecting member and the first cable management arm, and configured to abut against at least one of the first connecting member and the first cable management arm to limit a relative movement between the first connecting member and the first cable management arm to a limited range.