The MACOM PRISM4™ MATP-40050 device is a 400 Gbps PAM-4 PHY with integrated DSP and multiplexing functionality designed to enable four-wavelength 400 Gbps optical transceiver solutions. MACOM PRISM™ is a highly integrated device offering low latency, low power, and a small foot print package optimized for next generation QSFP-DD and OSFP 400 Gbps transceiver modules. The network interface is comprised of four bidirectional lanes of 53 Gbaud PAM-4 signaling while the host interface uses eight lanes running at 26 Gbaud PAM-4. The MACOM PRISM™ device offers a full suite of test and diagnostic features for PAM-4 signaling enabling quick and efficient bringup and debug.