The 400G QSFP56-DD AOC is a Eight-Channel, Pluggable, Parallel, Fiber-Optic QSFP Double Density for 2x200 Gigabit Ethernet Applications. Explore Amphenol's high-speed Active Optical Cables designed for data centers, HPC, telecom, and storage systems with support from 12G to 400G. Each cable integrates eight transmit and eight receive channels operating at 53. JTOPTICS® 400G QSFP-DD AOC (active. This combination does not exist. Terms and Conditions Shipping Next Business Day If In Stock Here are some questions some of our customers ask How fast can I get my stuff? I want to buy lots of stuff. Discount? I'm not sure which stuff is right for my network.