https://uk.insight.com/en_GB/shop/product/QSF-502-WR/wire%20technologies%20inc/QSF-502-WR/Wire-Technologies-Gigamon-QSF502-Compatible-QSFP+-transceiver-module-40GbE-40GBaseSR4-MPO-multimode-up-to-150-m-850-nm/?srsltid=AfmBOorpm2ZogcxHk5SsasJBlgeGZpSmV9FkhQJt_tJbKT4TKLSi2Yxb