The SONT 800G QSFP-DD 2×VR4(DB185-EC5C) optical transceiver is a Hot-Pluggable, Multi-Mode fiber for 800G short range of datacom interconnection. Using VCSEL devices for 8 lanes, each electrical lane convert into optical lanes at 106.25Gbps giving an aggregated data rate of 850Gbps. It allows communication up to 30m using OM3 fiber or 50m using OM4 fiber with FEC. Compliant with the Common Management Interface Specification and MSA. This module incorporates proven circuit and VCSEL technology to provide reliable long life, high performance, and consistent service.