A server rack includes a bracket, a first baffle, a first elastic member, a second baffle, and a second elastic member. The bracket includes a first side plate and a second side plate and defines a receiving space. The receiving space has an entry. An end of the first baffle is pivotally connected to the first side plate close to the entry. The first elastic member is connected to the first side plate and the first baffle and capable of elastically driving the first baffle to move from a first position to a second position. An end of the second baffle is pivotally connected to another end of the first baffle away from the first side plate. A second elastic member is connected to the first baffle and the second baffle and capable of elastically driving the second baffle to move from a third position to a fourth position.