Network Cards
Reliable High-Speed Ethernet Solutions for Network Interface Cards (NICs)
Network cards, also known as Network Interface Cards (NICs), serve as the physical interface between computing systems and networks. Whether in enterprise servers, telecom switches, or embedded edge devices, NICs must support high-speed data transmission, EMI immunity, compact design, and often, Power over Ethernet (PoE). LINK‑PP provides advanced RJ45 connectors, LAN transformers, and optical modules engineered to meet these demanding requirements.
Key Challenges in NIC Hardware Design
- Miniaturization & High Density — Modern NICs often require dual or quad-port RJ45 layouts within limited PCB space.
- Signal Integrity — Insertion loss, return loss, and crosstalk must be controlled across 1G/2.5G/10GBase‑T links.
- EMI/ESD Protection — Sensitive server environments demand robust shielding and compliance with EMI Class B limits.
- PoE Support — Many NICs in access switches or edge devices must support IEEE 802.3af/at/at++ standards for power delivery.
LINK‑PP Solutions for Network Cards
✅ Integrated RJ45 MagJack
Our compact multi-port magnetic RJ45 connectors support speeds up to 10GBase‑T and are available in dual or quad-port SMD packages. Features include:
- PoE/PoE+ capability (IEEE 802.3af/at/at++)
- Shielded design for enhanced EMI suppression
- Low-profile height options for NIC card stacking
- Temperature rating from –40 °C to +85 °C
✅ High-Frequency LAN Transformers
Our LAN magnetics provide excellent isolation, low insertion loss, and optimized impedance matching, supporting up to 10GBase‑T NICs. Available in discrete or integrated packages with optional center-tapped configurations.
✅ SFP/SFP+ Modules for Optical NICs
In fiber-based NICs, LINK‑PP provides compact hot-pluggable optical transceivers supporting 1G/10G links, including SR (850nm), LR (1310nm), and BiDi options.
Why LINK‑PP for NIC Manufacturers?
| Feature | LINK‑PP Solution |
|---|---|
| Compact Footprint | Multi-port RJ45 MagJack (SMD, low-profile) |
| EMI Protection | Shielded housing + differential layout design |
| PoE Support | 802.3af/at/at++ for server power delivery |
| Signal Quality | Insertion Loss < –1 dB, Return Loss > 16 dB |
| Certification | ISO9001, RoHS, REACH, UL94V-0 |
| Compatibility | Intel, Realtek, Broadcom NIC chipsets |
Application Topology
“📷4-port NIC card with integrated MagJack + LAN magnetics + SFP uplink cage”
FAQ: Network Card Integration
Q1: What’s the best RJ45 configuration for quad-port NICs?
A: SMD quad-port integrated MagJack (e.g., LPJG0926HENL) offers the most compact and EMI-compliant solution.
Q2: Do LINK‑PP modules support auto MDI/MDIX?
A: Yes, all 1G/2.5G/10GBase‑T RJ45 solutions support auto crossover (MDI/MDIX) and link polarity detection.
Q3: Is LINK‑PP compatible with Intel 82599/82576?
A: Yes, our LAN magnetics and MagJack components are fully tested with Intel and Broadcom NIC controller chips.
Technical Resources
LAN Magnetics Design Guide
Blog: Why Surface Mount RJ45 Matters in Server NICs