<?xml version="1.0" encoding="UTF-8"?><body><![CDATA[The StarTech LOOPBACKMTP12OS2SMF is a loopback adapter designed for high-performance networking applications. This fiber optic loopback adapter utilizes singlemode technology and features a durable ABS shell, providing longevity and resilience, suitable for demanding environments. With a core diameter of 9 microns and cladding diameter of 125 microns, it ensures optimal signal transmission across its 12 fibers. The adapter meets OS1/OS2 standards, making it a reliable choice for various network setups.]]><br /></body>