Stacked pluggable cage having intermediate walls interengaged each other

abA stacked pluggable cage in accordance with the present invention is adapted for receiving two transceivers. The stacked pluggable cage includes a shielding shroud defining a receiving space, and a first and a second intermediate walls inserted in the shielding shroud. The first and second intermediate walls are disposed adjacent to each other to divide the receiving space into a first and a second receiving subspaces for receiving the transceivers respectively. Each intermediate wall has a body portion, and a number of flexible fingers extending rearwardly from the body portion and tilting toward corresponding receiving subspace for grounding corresponding transceiver to thereby improve EMI performance.