QSFP-400G-DR4-MSA-AT Universally Coded MSA Compliant Transceiver QSFP-DD 400GBase-DR4 (1310nm, SMF, 500m, MPO, DOM)QSFP 400G DR4 MSA AT Universally Coded MSA Compliant Transceiver QSFP DD 400GBase DR4 (1310nm, SMF, 500m, MPO, DOM) ATGBICS Universally Coded MSA compliant QSFP 400G DR4 MSA AT QSFP DD 400GBase DR4 form factor network transceiver supports a distance of up to 500m over single mode fibre (SMF) using a wavelength of 1310nm via an MPO 12 connector. This product operates within a commercial temperature range. Digital optical monitoring (DOM) support is