Optimal Fiber Connections: BlueOptics Fiber Optic LWL Pigtail with SC/UPC Simplex Connector and Singlemode Fiber of fiber category G.657.A1, 1 meter in length. The 12 fiber pigtails are color-coded according to DIN VDE 2255, 50 cm, in the colors red, green, blue, yellow, white, gray, brown, violet, turquoise, black, orange, and pink. G.657.A1 LWL SC/UPC Simplex Singlemode Pigtails are designed for the transmission of optical signals and are suitable, for example, for connecting patch panel ports to each other or for connecting optical transceivers. Best Attenuation Values: BlueOptics G.657.A1 LWL SC/UPC Simplex Singlemode Pigtails offer the best attenuation values and always have low insertion loss and high return loss. Custom lengths are also available upon request. Highest Component Quality: For loss-free transmission performance, BlueOptics LWL SC/UPC G.657.A1 Simplex Singlemode are produced with the utmost quality.