The Cisco's QDD-400G-VR4 Module (Figure 5) is a hot pluggable optical transceiver compliant with 400G Ethernet. The optical interface supports bit rates of 53. 125 GBaud PAM-4 per lane (106. 25 Gbps/lane) and link reach up to 50m over OM4/OM5 MMF, 30m over OM3 MMF. FS provides an expanding portfolio of 400G OSFP/QSFP112/QSFP-DD solutions featuring high-performance, high-bandwidth, and backward compatibility. The 400G transceiver modules are ideal choice for AI data centers, enterprise networks and service provider networks. Click to get your 400G transceiver. The 400GBASE-DR4 module supports link lengths of up to 500m parallel SMF with MTP/MPO-12 connector. 3bs protocol and 400GAUI-8 standards. The Cisco 400GBASE Quad Small Form-Factor Pluggable Double Density (QSFP-DD) portfolio offers customers a wide variety. QSFP-DD optical module, QSFP-DD optical fiber module, QSFP-DD 200G optical module, QSFP-DD 200G optical fiber module, QSFP-DD 400G optical module, QSFP-DD 400G optical fiber module; currently QSFP28 optical module has four electrical channels. Each channel operates at 10Gbps or 25Gbps and supports. With double-density architecture, QSFP-DD supports 400G in a compact form, providing efficient scalability and optimal power usage for next-gen network demands. Our 400G QSFP-DD portfolio offers connectivity from short to long range.