QSFP-40G-ZR4-MSA-AT Universally Coded MSA Compliant Transceiver QSFP+ 40GBase-ZR4 (1310nm, SMF, 80km, LC, DOM)QSFP 40G ZR4 MSA AT Universally Coded MSA Compliant Transceiver QSFP+ 40GBase ZR4 (1310nm, SMF, 80km, LC, DOM) ATGBICS Universally Coded MSA Compliant QSFP 40G ZR4 MSA AT QSFP+ 40GBase ZR4 form factor network transceiver supports a distance of up to 80km over multi mode fibre (MMF) using a wavelength of 1310nm via an LC Duplex connector. This product operates within a commercial temperature range. Digital optical monitoring (DOM) support is also