LRES2026PF-LX is a PCI Express v2.1 x1 single optical port Gigabit Ethernet network adapter developed by Shenzhen Lianrui Electronics Co., Ltd. based on the main controller solution independently produced in China. This adapter is compatible with PCIe x4, x8 and x16 and backward compatible with PCIe v1.1. The adapter card achieves a single-port two-way communication transfer rate with a theoretical throughput of 2GB on a PCI Express v2.1 x1 bus.