4-Port PCIe x1 Gigabit Ethernet Network Card | OULLX RTL8111
OULLX 4-Port Gigabit Ethernet PCIe Network Card
Upgrade your desktop PC with the OULLX 4-Port RJ45 Gigabit LAN Network Adapter — a high-performance PCIe x1 card featuring four independent Gigabit Ethernet ports powered by the reliable RTL8111 chipset. Whether you're building a home server, a soft router, or simply need multiple wired network connections, this card delivers blazing-fast 10/100/1000 Mbps auto-negotiation across all four ports simultaneously.
Made in Mainland China.
Key Features
- 4 × RJ45 Gigabit Ports — Connect up to four wired Ethernet devices at speeds up to 1000 Mbps per port
- PCIe x1 Interface — Fully compliant with PCI Express 1.1; fits standard and low-profile PC cases
- RTL8111 Chip — Industry-trusted controller for stable, efficient network performance
- Wake-on-LAN (WOL) — Remotely power on your PC over the network for convenient management
- VLAN Support (IEEE 802.1q) — Enables VLAN tagging and aggregation for advanced network configurations
- Jumbo Frames — Supports up to 9K-byte jumbo frames for improved throughput on large data transfers
- CAT-5 UTP Compatible — Works seamlessly with your existing Cat5 or Cat5e/Cat6 cables
- Half/Full Duplex + 802.3x Flow Control — Automatic mode negotiation for optimal connection quality
- IEEE 802.1P Layer 2 Priority Encoding — Supports QoS traffic prioritization
- Power Saving Mode — Reduces power consumption when disconnected or powered off
- Heat Dissipation Support — Built-in thermal management for sustained performance
- CE Certified
Technical Specifications
| Interface | PCI Express x1 (PCIe 1.1) |
| Ports | 4 × RJ45 Gigabit Ethernet |
| Transmission Rate | 10 / 100 / 1000 Mbps (auto-negotiation) |
| Chipset | Realtek RTL8111 |
| Network Type | Wired Ethernet (IEEE 802.3 / 802.3u / 802.3ab) |
| Cable Support | CAT-5 UTP and above |
| Form Factor | Internal, Standard & Low Profile |
| Certification | CE |
System Compatibility
- Windows XP / Vista / 7 / 8 / 8.1 / 10 (32-bit & 64-bit)
- Windows Server 2003 / 2008 / 2012 (32-bit & 64-bit)
- Linux, macOS, FreeBSD, DOS, ROS, AYOS
Ideal For
- Home & office servers requiring multiple wired connections
- Soft router / firewall builds (pfSense, OPNsense, ROS)
- Network-attached storage (NAS) setups
- Desktop PCs needing reliable multi-port wired connectivity
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Frequently Asked Questions
Q: Does this 4-port PCIe Gigabit network card work with Linux or macOS?
A: Yes. The OULLX 4-port RJ45 network card is compatible with a wide range of operating systems including Linux distributions, macOS, FreeBSD, DOS, and ROS, in addition to all major Windows versions (XP through Windows 10, 32/64-bit), making it a versatile choice for multi-OS environments and soft router builds.
Q: What PCIe slot does this network adapter require?
A: This card uses a PCIe x1 slot (PCI Express 1.1). It is also backward and forward compatible with larger PCIe slots (x4, x8, x16), so it will fit in most modern desktop motherboards. It supports both standard and low-profile case configurations.
Q: Can I use existing Cat5 cables with this card?
A: Absolutely. The card is fully compatible with standard CAT-5 UTP cables for 1000BASE-T Gigabit Ethernet. It also works with CAT-5e and CAT-6 cables if you want to future-proof your setup.
Q: What is Wake-on-LAN (WOL) and does this card support it?
A: Wake-on-LAN is a feature that allows you to remotely power on your desktop PC by sending a "magic packet" over the network. This OULLX adapter fully supports WOL as well as remote wake-up functions, making it ideal for server management and remote access scenarios.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.