UGREEN PCIe Gigabit Network Card US230 – 10/100/1000Mbps Desktop Ethernet Adapter

The UGREEN US230 is an internal PCI Express network card that adds or replaces a Gigabit Ethernet port on any compatible desktop PC, workstation, or server. It supports 10/100/1000 Mbps Ethernet with full-duplex operation, enabling stable, low-latency wired network performance for gaming, streaming, file sharing, or virtualisation workloads. It suits desktop users whose motherboard lacks a built-in Ethernet port, has a failed NIC, or requires a secondary network interface for redundancy or bridging.

---

Technical Specifications

Interface and Performance

Chipset and Standards

Advanced Features

Compatibility

Physical

Package Contents

Warranty

---

Use Cases and Applications

Upgrading a Desktop PC with No Ethernet Port or a Failed NIC

Many budget and mid-range desktops ship with only Wi-Fi, or have an onboard Ethernet port that has failed. The US230 resolves this without requiring a motherboard replacement. Insert the card into any available PCIe slot, connect a Cat 5e or Cat 6 cable, and install the driver from the included disc or from the UGREEN website. On most Windows 10 and 11 builds, drivers install automatically via Windows Update. Consequently, wired Gigabit access is restored with minimal effort and no soldering or BIOS modification.

Adding a Second Network Interface for Redundancy or Bridging

Workstations and small servers sometimes require two separate network connections — for example, one interface connected to a local NAS and another to the internet. The US230 provides this second interface cleanly via PCIe. Furthermore, its 802.1Q VLAN support allows the port to participate in a tagged VLAN environment, making it appropriate for segmented SME networks managed via a VLAN-aware switch.

Home Lab and Managed Office Deployments

The Wake-on-LAN feature makes the US230 particularly useful in home lab and small office settings where remote power management matters. An administrator can power a desktop on remotely by sending a magic packet over the network — without physically accessing the machine. Additionally, the Energy Efficient Ethernet (EEE) function reduces power draw during periods of low or idle network activity, cutting long-term running costs in always-on workstation deployments.

Small Form Factor and HTPC Builds

Compact desktop builds often use low-profile expansion cards. The included 8 cm low-profile bracket addresses this directly, allowing the US230 to fit in slim HTPC enclosures and small server chassis. However, users should verify their motherboard exposes a PCIe slot — the card does not work in legacy PCI slots.

---

Compatibility Notes

• Will this card work in a PCI (non-Express) slot? No. The US230 requires a PCIe slot. It is not compatible with older legacy PCI slots.
• Does it work on macOS or Linux? No. Only Windows operating systems from 98SE through to Windows 11 are officially supported. Linux and macOS are not supported.
• Can I connect SATA power to this card? No. The card draws power exclusively from the PCIe slot at 5V. Do not connect a SATA power cable, and do not reverse the orientation of any power connector.
• Do I need to install drivers manually? On Windows 10 and 11, drivers typically install automatically. For older Windows versions, use the included driver disc or download the driver from the UGREEN website using model number 30771.
• Is the card compatible with servers? Yes. The Gigabit NIC suits any PCI-E enabled client, server, or workstation.