First native OSFP & QSFP-DD PAM4 400GE Test Equipment, in true portable form factor, enabling 400GE technologies’ Lab-to-Field Transition and leading the early deployment for datacenters and telcos. It offers testing capabilities from 1GE to 400GE. The RXT-6400 is the first truly portable 400G test set supporting native PAM4 QSFP-DD and OSFP. Equipped to support all common transceiver form-factors, this module is a perfect complement to the RXT Platform, extending its testing range to 400 Gbps and offering all-in-one 1GE-to-400GE testing capabilities. Installation, verification, commissioning, evaluation and maintenance tasks are simplified thanks to a combination of intuitive GUI and powerful test functions. Novice users benefit from the easy-to-use GUI, while experienced users will appreciate an array of advanced layer 1-4 features, such as FEC codeword Error distribution analysis, PAM4 pre-emphasis, skew, transceiver check and stress, Lane BERT, Throughput test, IPv4/IPv6, transceiv