Our custom made 12 Fiber MPO Standard Loopbacks are multimode 50/125. They significantly speed up the testing of optical networks Plug-and-play, don’t require extra setup. Each MPO connector features a physical contact (PC) polish to reduce insertion loss during testing Specification: Fiber connector: MPO Female Insert-pull test:50times, IL Operation temperature-40 to 75°C (-40 to 167°F) LSZH Cable Jacket Fully compliant to MPO specifications Supports QSFP+ transceivers 12 Fiber Multimode OM3 Cable Karono MPO/MTP Fiber Optic Loopback Adapter, 12 Fibers OM3 Fiber Optic Test Cable The MTP Elite/UPC, Multimode OM3 12 Fiber Optic Loopback is the perfect tool for fast, efficient testing of 40G/100G/200G optical networks segments. The loopback works by taking connections from the transmit (Tx) paths in optical links to the receive (Rx) paths, and looping them back Fully compliant to MPO specifications Supports QSFP+ transceivers Devices allow verification and testing of transceivers featuring MPO interface – 40GBASE-SR4 QSFP+ or 100GBASE-SR4 devices. TRIPP LITE N844-LOOP-12F MTP/MPO Fiber Optic Loopback Ideal for a multitude of applications that require signal looping in a MPO form factor, quickly test multimode QSFP and QSFP+ Fiber Transceivers at 10Gb, 40GB and 100GB rates.