The LC Fiber Optic Attenuator 20dB Singlemode Fixed Male Female Adapter 5 Pack is a universal attenuator designed for optical fibers. With a 20 dB attenuation feature, this adapter provides precise control over the optical signal strength. The LC connectors on both ends ensure reliable and secure connections, while the blue color makes it easy to identify. Made in China, this unit includes 5 pieces and is compatible with various universal models. Ideal for networking and computer applications, this attenuator is a valuable addition to any optical fiber setup.