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OS2 LC Fiber Optic Loopback Cable, Single Mode Fiber Loopback Testers, 9/125um, Duplex LC/UPC Connectors for Self-Testing SFP Modules or Network Device

Test Applications: OS2 9/125um single-mode fiber optic loopback cable is designed to test singlemode SFP and SFP+ Fiber Transceivers, enhance testing precision and expedite network repairs; 1 Pack; Efficient Design: Premium Ceramic Ferrule provides low insertion loss, good repeated insertion and removal performance; Insertion Loss is less than 0.3dB; Return Loss is greater than 55dB; Superior Safety: LSZH Protection Jacket and strong resistance to pull, provide a safer and effective way to test the transmission capability and receiver sensitivity of the optical fiber cabling, SFP Modules, device port or the entire network devices; Easy To Use: Plug-and-play, dont require extra setup; It is convenient and easy to test the dual LC Single mode fiber optic SFP modules; High Quality: OS2 loopback testers meet TIA 568-C.3 / 604-10 / 492AAAC, UL910, CE, RoHS; We provides 24/7 Customer Service, 30 Days Free-returned, 1 Year Free Warranty and Lifetime Technology Support

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Additional Information
First Listed on Newegg	July 23, 2026

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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