Professional 10G SFP+ Fiber Network Card for Enterprise Applications
The Lekuo PCIe 10G SFP+ Fiber Network Card delivers enterprise-grade fiber optic networking performance with the energy-efficient Realtek RTL8127 chipset. Featuring ultra-low 1.79W power consumption and fanless operation, this professional network adapter is engineered for servers, workstations, and high-performance computing environments requiring reliable 10 Gigabit fiber connectivity.
🔷 Key Features
Realtek RTL8127 Chipset - Industry-Proven Reliability
Powered by the trusted Realtek RTL8127 controller with excellent driver support across Windows Server, Linux, FreeBSD, and VMware ESXi. Mature chipset architecture ensures stable operation in mission-critical fiber optic environments.
🔌 SFP+ Fiber Connectivity - Maximum Flexibility
Single SFP+ port with integrated LED indicators for link status and activity monitoring. Supports all standard SFP+ modules and DAC cables:
- ✅ 10GBASE-SR - Multi-mode fiber up to 300m
- ✅ 10GBASE-LR - Single-mode fiber up to 10km
- ✅ 10GBASE-ER - Single-mode fiber up to 40km
- ✅ DAC Cables - Direct Attach Copper for short-range connections
- ✅ 1G SFP - Backward compatible with Gigabit modules
⚡ PCIe 3.0 x2 Interface - Energy Efficient Design
PCIe 3.0 x2 electrical interface (compatible with x4/x8/x16 slots) provides sufficient bandwidth for full 10Gbps throughput while minimizing power consumption. Compact low-profile design fits both standard and small form factor systems. Includes both full-height and low-profile brackets.
🌿 Ultra-Low Power Consumption - 75% Less Than Intel X520
- ✅ Only 1.79W at 10G - Industry-leading power efficiency
- ✅ 0.29W at 1G - Minimal idle power consumption
- ✅ Fanless Operation - Silent, reliable, maintenance-free
- ✅ 24/7 Operation - Ideal for always-on servers and NAS systems
- ✅ Reduced Heat - Lower cooling requirements for data centers
🔧 Professional-Grade Construction
Gold-plated PCIe edge connector ensures reliable electrical contact and long-term durability. High-quality multi-layer PCB design with passive cooling provides excellent signal integrity and EMI shielding for sustained high-bandwidth fiber optic operations.
💼 Ideal Applications
- ✅ Enterprise servers and data centers with fiber infrastructure
- ✅ High-performance workstations requiring long-distance connectivity
- ✅ Network-attached storage (NAS) systems with fiber SAN
- ✅ Virtualization hosts (VMware ESXi, Proxmox, Hyper-V)
- ✅ Media production facilities with fiber backbone
- ✅ Campus networks and building-to-building connections
- ✅ Low-power, fanless server builds and edge computing
📋 Technical Specifications
📦 Package Contents
- ✅ 1x Lekuo PCIe 10G SFP+ Fiber Network Card
- ✅ 1x Low-profile bracket for compact systems
- ✅ 1x User manual with installation instructions
Note: SFP+ modules and fiber cables sold separately
❓ Frequently Asked Questions
Q: How much power does this card consume compared to Intel X520?
A: The RTL8127 consumes only 1.79W at 10G, which is approximately 75% less than the Intel X520 (typically 6-8W). This makes it ideal for low-power builds, fanless servers, and energy-efficient data centers.
Q: Does this card require active cooling or a fan?
A: No, this card features fanless, passive cooling design. The ultra-low power consumption (1.79W) generates minimal heat, making it perfect for silent operation and maintenance-free 24/7 use.
Q: Is this compatible with VMware ESXi and Proxmox?
A: Yes, the Realtek RTL8127 chipset is supported by VMware ESXi, Proxmox VE, and other virtualization platforms. Check driver compatibility for your specific hypervisor version.
Q: Can I use DAC (Direct Attach Copper) cables with this card?
A: Yes, this SFP+ port supports DAC cables for short-range 10G connections (typically 1-7 meters), which is a cost-effective alternative to fiber for rack-to-rack or server-to-switch connections.
Q: Will this work in a PCIe x4 or x8 slot?
A: Yes, while the card is electrically PCIe 3.0 x2, it is physically and electrically compatible with PCIe x4, x8, and x16 slots. It will work in any available PCIe slot.
💾 Driver Download
Download the latest RTL8127 driver package for optimal performance:
⬇️ Download RTL8127 Driver PackageSupports Windows, Linux, FreeBSD, and VMware ESXi
Why Choose Lekuo?
We specialize in enterprise-grade storage and networking solutions for professional environments. Every product undergoes rigorous quality testing to ensure reliable performance in demanding fiber optic applications. Backed by technical support and warranty coverage for peace of mind.