The PRO-OPTICS QSFP-DD-400G-VR4 transceiver delivers high-performance 400GBase-VR4 connectivity for next-gen data centers. Designed for 30m/50m reach over OM3/OM4 multi-mode fiber with an MPO-12 APC connector, this hot-pluggable module ensures seamless interoperability with high-density 400G Ethernet switches and routers. Optimized for low power consumption and rigorous signal integrity, PRO-OPTICS provides a reliable, cost-effective solution for high-bandwidth, short-reach interconnects.