Description: Standard Fiber Optic Adapters (Fiber Optic Flanges/Coupling Sleeves) are fiber optic passive devices designed for connection between two connectors. A variety of adapters are available with high accuracy, low insertion loss, superior durability, excellent interconnectivity, and temperature adaptability. These FC-type adapters also perform well in optical and mechanical properties and are widely used in Optical Distribution Frames (ODF), communication, and measurement equipment. Specification: Material: FBT Color: Blue Precision machined size, high reliability, stability Low insertion loss, high return loss, good interchangeability Insertion Loss: 0.2dB Return Loss: 50dB Operating Temperature: -30 to +75 °C Storage Temperature: -40 to +85 °C Interchangeability: 0.2dB Vibration Test: 0.1dB (10-60Hz, 1.5mm amplitude) Repeatability: 1000 times Connection: For FC, ST threaded locking type; LC, SC snap-on type Quantity: 10 pcs Note: 1. Please allow 1-3cm error due to manual measurement. Make sure you don't mind before bidding. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 10 pcs x Fiber Optic Adapter