Features: 1. Single +3.3V or +5V power supply 2. MSA compliant 2*5/2*10 SFF package with dual LC receptacle 3. 850nm/1310nm/1550nm VCSEL /FP/ DFB 4. Class I laser product complies with IEC60825-1 5. Complies with Telcordia GR-468-CORE 6. Very low EMI and certified ESD protection Application: 1. Gigabit Ethernet 2. SDH / SONET 3. ATM More Product Features ? Trademark: Star Standard: ISO9001:2000 Company: Shenzhen Staropto Technology Co., Ltd.