http://www.topnetsystem.com/400g-qsfp-dd.html en http://www.topnetsystem.com/400g-qsfpdd-fr4.html 400G QSFP-DD FR4 converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of CWDM optical signals and multiplexes them into a single channel for 400Gb/s optical transmission. http://www.topnetsystem.com/ 2013/1/29 http://www.topnetsystem.com/400g-qsfpdd-sr8.html QSFP-DD SR8 transceiver modules are designed for use in Gigabit Ethernet links on up to 70m on OM3 MMF or 100m on OM4 MMF. http://www.topnetsystem.com/ 2020/7/5 http://www.topnetsystem.com/ts-qsfp-dd-dr4.html 400G QSFP-DD DR4 converts 8 channels of 50Gb/s (PAM4) electrical input data to 4 channels of parallel optical signals, each capable of 100Gb/s operation for an aggregate data rate of 400Gb/s. http://www.topnetsystem.com/ 2022/1/30 19:34:39 http://www.topnetsystem.com/400g-qsfpdd-lr4.html http://www.topnetsystem.com/ 2021/9/29 9:30:00