ATOP XSP BIDI series consist of 10G XFP BIDI 60KM, 10G XFP BIDI 40KM, 10G XFP BIDI 20KM, and 10G XFP BIDI 10KM, designed for use in 10Gigbit, multi-rate links up to 60KM of G.652 single mode fiber. Compatible with XFP MSA and supporting 10G Ethernet and 10G Fiber Channel protocol, these products are well suited for data center Fast Ethernet and Fiber Channel applications.