The 800G QSFP-DD DR8 LPO SiPh optical transceiver in QSFP-DD package is designed for facilitating 800 Gigabit Ethernet connections over distances of up to 500 meters through single-mode fiber. With eight independent electrical input/output channels, each channel operates at 106.25 Gbps. It includes two transmitter/receiver units, and its electrical interface conforms to the 2*400GAUI-4 standard defined by IEEE 802.3ck. It eliminates DSPs and adopts low insertion loss silicon optical chip, realizing lower power consumption and latency.