Cisco - InfiniBand cable - 4 x InfiniBand (M) to 4 x InfiniBand (M) - 49 ft - for P/N: X2-10GB-CX4/ X2-10GB-CX4=/ X2-10GB-CX4-RF/ XENPAK-10GB-CX4/ XENPAK-10GB-CX4-RF