Availabilities - FC, SC, ST, LC - UPC / APC - Attenuation: 1 ~ 30dB - Wavelength: SM:1310um,1550um; MM: 850um, 1310um - With dustproof cap Features - Metal ion doped fiber - High-power light source durability - Precise attenuation: ±0.5dB (under 10 dB), ±1.0dB (over 10 dB) - High return loss: UPC>=50dB, APC>=60dB - Wavelength independence - Working Temperature range: -40 degree.C to 85 degree.C