800G PSM8 utilizes CWDM technology with 8 optical channels, each delivering 100Gbps, supporting 100m transmission distance, making it ideal for long-distance transmission and fiber resource sharing. 800G 2DR4 refers to 2x “400G-DR4” interfaces. In the case of 800G, each electrical lane is modulated at 100Gb/s, resulting in a total bandwidth of 800Gb/s. QSFP-DD: The QSFP-DD, which stands for "Quad Small Form-factor Pluggable - Double Density," shares a similar form factor with the QSFP but features an additional row of electrical contacts. 800G DR8 optical module uses 100G PAM4 and 8-channel single-mode parallel technology, and the transmission distance through single-mode optical fiber can reach up to 500m, which is typically used in data centers, 800G-800G, 800G-400G, and 800G-100G interconnections. FS 800G QSFP-DD DR8 delivers. The Cisco ® OSFP 800G transceiver modules provide 800 Gigabit Ethernet (GE), 2x 400GE, 4x 200GE, and 8x 100GE connectivity options, complying with the Octal Small Form Factor Pluggable (OSFP) MSA for pluggable transceivers. The modules comply with the OSFP MSA configuration with integrated closed. The QSFP-100G modules are our latest generation of 100G transceiver modules solution based on a QSFP form factor. ● Hot-swappable input/output device that plugs into a 100G Gigabit Ethernet Cisco QSFP port.