used CISCO SFP module X2-10GB-CX4

X2-10GB-ER 10GBASE-ER X2 Module X2-10GB-ER= 10GBASE-ER X2 Module X2-10GB-SR 10GBASE-SR X2 Module X2-10GB-SR= 10GBASE-SR X2 Module X2-10GB-CX4 10GBASE-CX4 X2 Module X2-10GB-CX4= 10GBASE-CX4 X2 Module X2-10GB-LX4 10GBASE-LX4 X2 Module X2-10GB-LX4= 10GBASE-LX4 X2 Module X2-10GB-LR 10GBASE-LR X2 Module X2-10GB-LR= 10GBASE-LR X2 Module