This is a NEW 10G-XFP-CX4 Foundry/Brocade 

10GBase-CX4, XFP module, 15 m, CX4 connector.

This is New in the Factory Original box. 

90 Day Hardware Warranty.

Free Fedex Ground Shipping in the lower 48 States.

Let me know if you have any questions M-F 9:00-5:00 PST

Here is a link to more info from Brocade's website: HTTPS://www.brocade.com/downloads/documents/data_sheets/product_data_sheets/optics-ds.pdf

This is a NEW 10G-XFP-CX4 Foundry/Brocade 

10GBase-CX4, XFP module, 15 m, CX4 connector.This is a NEW 10G-XFP-CX4 Foundry/Brocade 

10GBase-CX4, XFP module, 15 m, CX4 connector.This is a NEW 10G-XFP-CX4 Foundry/Brocade 

10GBase-CX4, XFP module, 15 m, CX4 connector.