Finisar's 120km FTLX4213M3BCL Small Form Factor 10Gb/s 1550nm XFP transceivers comply with the current XFP Multi-Source Agreement (MSA) Specification. They support a maximum +2400ps/nm of dispersion for SONET OC-192, SDH STM-64, 10GBASE 10-Gigabit Etherne