In this paper, we present a Silicon integrated 53 GBd PAM-4 TX as a candidate for integration into 106GBdPAM-42:1serializedTX. 5 pJ/b. The Marvell® PAM4 optical DSP portfolio, including Spica™ and Nova™ DSPs, addresses the critical the need for high-bandwidth optical interconnects to power AI infrastructure. Marvell leads the pluggable module ecosystem with low-power, high-performance silicon for AI, cloud, enterprise and 5G. MaxLinear's highly integrated PAM4 DSPs offer superior link-margin performance and low power to enable 100G, 400G, 800G, and 1. 6T optical interconnects inside the data center. They deliver reliable, ultra‑low‑latency performance and strong network resiliency, while Credo's low‑power SerDes architecture provides industry‑leading. 400G QSFP-DD DR4 optical module uses a standard MPO-12 connector to transmit up to 500m over single-mode fiber. The Transceiver complies with QSFP-DD MSA, IEEE 802. 3bs protocol, and 400GAUI-8 standard. 400 Gigabit Ethernet signals are transmitted over four parallel channels on one wavelength per. At the heart of Acacia's 200G per lane client optics portfolio, leveraging Acacia's proven DSP expertise, is the 3nm 1. The chipsets include laser drivers, CDRs, TIAs and in some cases FEC, PAM4 and coherent DSP ICs.