Ugreen UG- 30771 Gigabit 10/100/1000Mbps PCI Express Network Adapter

The Ugreen UG-30771 represents a high-performance internal network interface card designed for desktop computers. This PCI Express adapter provides Gigabit Ethernet connectivity for systems requiring wired network expansion or replacement of failed onboard network controllers.

PCI Express x1 Interface Architecture

The UG-30771 utilizes a PCI Express x1 interface for system integration. This connection standard delivers dedicated bandwidth between the network adapter and system motherboard, eliminating the shared bus bottlenecks associated with legacy PCI slots.

PCI Express x1 provides sufficient throughput for Gigabit Ethernet operations without bandwidth limitations. Consequently, the adapter achieves full 1000Mbps transfer rates without performance degradation from other system components. The interface maintains backward compatibility with PCI Express 2.0 and 3.0 slots.

Multi-Speed Ethernet Support

The adapter supports three discrete Ethernet speed standards: 10Mbps, 100Mbps, and 1000Mbps. This tri-speed functionality enables automatic negotiation with network infrastructure operating at different performance tiers.

Furthermore, the UG-30771 automatically detects connected network equipment capabilities and adjusts transmission speeds accordingly. This auto-negotiation process ensures optimal performance across diverse network environments, from legacy 10BASE-T installations to modern Gigabit infrastructure.

RJ45 Ethernet Connectivity

The Ugreen UG-30771 features a standard RJ45 port for Cat5e, Cat6, or Cat6a Ethernet cable connections. This universal connector type provides compatibility with existing structured cabling systems and network equipment.

The RJ45 interface supports full-duplex communication, enabling simultaneous transmission and reception at Gigabit speeds. Therefore, the adapter achieves theoretical maximum throughput of 2000Mbps aggregate bandwidth (1000Mbps each direction) under optimal network conditions.

Wake-on-LAN Functionality

The adapter implements Wake-on-LAN (WoL) technology for remote system power management. This feature allows network administrators to power on computers remotely through specially formatted network packets.

Moreover, WoL capability proves particularly valuable in enterprise environments requiring remote maintenance, software deployment, or scheduled backup operations. The UG-30771 maintains network monitoring functionality even when the host system enters low-power states, enabling reliable remote wake capabilities.

Advanced Network Features

The adapter incorporates IEEE 802.3az Energy-Efficient Ethernet (EEE) technology. This standard reduces power consumption during periods of low network activity without compromising connection stability or responsiveness.

Additionally, the UG-30771 supports jumbo frame transmission up to 9KB packet sizes. Jumbo frames reduce CPU overhead and improve throughput efficiency for large file transfers, network storage operations, and multimedia streaming applications.

Operating System Compatibility

The UG-30771 provides driver support across multiple Windows operating systems, including Windows 7, Windows 8, Windows 8.1, Windows 10, and Windows 11. Installation typically proceeds automatically on Windows 10 and 11 through native driver integration.

Similarly, the adapter supports various Linux distributions through kernel-integrated drivers or downloadable driver packages. Windows Server editions also maintain compatibility, enabling deployment in server and workstation environments requiring dedicated network connectivity.

Low-Profile Bracket Design

The adapter includes both standard and low-profile mounting brackets. This dual-bracket configuration ensures compatibility with full-height desktop towers and compact small form factor (SFF) systems.

Therefore, users can deploy the UG-30771 across diverse chassis configurations without compatibility concerns. The low-profile bracket proves essential for slim desktop systems and compact workstations with restricted internal clearance.

Hardware Offload Capabilities

The network adapter implements TCP/IP checksum offload functionality, transferring packet processing tasks from the system CPU to dedicated network controller hardware. This offload architecture reduces processor utilization during network-intensive operations.

Furthermore, the UG-30771 supports large send offload (LSO) and receive-side scaling (RSS) for improved multi-core processor utilization. These hardware acceleration features enhance overall system performance during high-throughput network operations.

Auto-MDIX Support

The adapter features automatic MDI/MDI-X crossover detection and correction. This technology eliminates the need for specialized crossover cables when connecting directly to other network devices.

Consequently, users can employ standard straight-through Ethernet cables for all connection scenarios. The UG-30771 automatically detects wiring configurations and adjusts internal signal routing accordingly, simplifying cable management and reducing deployment complexity.

LED Status Indicators

The RJ45 port incorporates integrated LED indicators for connection status monitoring. Typically, these LEDs display link status (connection presence) and network activity (data transmission/reception).

Visual feedback enables rapid troubleshooting and connection verification without software diagnostic tools. The LED indicators remain visible externally when the adapter is installed in desktop chassis, facilitating connection monitoring during system operation.