OEM/ODM Rj45 Coupler Suppliers & Exporter

Featured Connectivity & Interface Hardware

Explore our high-performance RJ45 connectors, optical SFP transceivers, and discrete magnetic modules.

RJSAE-5381-02 615016245421 With G/Y Leds 2X1 Port RJ45 Connector Jack Without Magnetics
10GBASE-T SFP+ Copper RJ45 30m 10G Copper SFP Transceiver Module
1310nm-TX/1550nm-RX Single Mode Simplex LC SFP 155M Bidi 10km Optical Transceiver Module
V891-1XX1-R1 RJ45 Connector MagJack 10/100 Base-T PoE 1X1 Vertical RJ45 Connectors
Multi-Port 2X1 Side Entry Through Hole Stacked RJ45 Connector SS-7188S-A-PG4-1-BA-50 0844-2B1T-33-F E5908-0T0343-L 0845-2R1T-W2
10/100 BASE-T Discrete Magnetic Network Transformer HST-4093SCR / HST-4094SCR / HST-4095SCR
64F-1301NW2NL 1x4 Port Quad Ports 10/100/1000 Base-t Female Ethernet RJ45 Connector Without Led
Single Mode 25G CWDM SFP28 Transceiver 10km Duplex LC SMF Optical Transceiver Module

Pioneering High-Speed Optical & Copper Connectivity

As networks scale to support massive artificial intelligence datasets, high-density edge deployments, and rugged industrial IoT nodes, the physical layers—both copper and optical—must perform flawlessly. At Xelivor Optoelectronics Co., Ltd., we bridge the gap between structural integrity and high-speed electrical signals.

Established in 2016, Xelivor has grown from a specialized optical assembly team to a global powerhouse in networking infrastructure. Operating from our advanced precision facilities and R&D cleanrooms, we deliver state-of-the-art optical transceivers alongside rugged RJ45 interface solutions to system integrators, telecom operators, and data center architects worldwide.

Custom mechanical design for challenging form-factor constraints.
Fully compatibility-tested firmware for multi-vendor network integration.
Rigorous electrical, thermal, and optical parameter verification.
RoHS, REACH, and CE-compliant manufacturing practices.

8+

Years Industry Experience

68

R&D Engineers

850+

Supply Chain Partners

$12M+

Annual Export Volume

Technical Trends in Modern Physical Layer Connectivity

Understanding the design shift from legacy interfaces to multi-gigabit shielded infrastructure.

1. High-Bandwidth Copper Migration

As 2.5G and 10G Base-T technologies shift from high-end enterprise niches to mainstream edge deployments, standard RJ45 systems face severe electrical stress. Modern RJ45 couplers and connectors require enhanced crosstalk mitigation (NEXT and FEXT) to guarantee signal integrity up to 500 MHz and 2000 MHz (Cat8) frequencies.

2. High-Power PoE++ Integration

With IEEE 802.3bt Type 4 PoE (up to 90W/100W delivered via four pairs), connector contacts face severe arc erosion during mating under load. OEM factories now design RJ45 jacks with specialized geometry to relocate the mechanical contact spark point away from the nominal transmission area, ensuring long-term low contact resistance.

3. Coexistence of Fiber & Copper

The boundary between copper networks and fiber cores is shrinking. Systems like 10GBASE-T SFP+ copper modules plug directly into optical SFP sockets to transition seamlessly to structured Category-rated copper cabling. This enables cost-effective data migrations without overhaul of the active routing backplanes.

Global Sourcing Trends & Procurement Dynamics

Enterprise IT directors and telecom procurement agents demand high structural reliability alongside cost-optimization. Field failures are prohibitively expensive; a single failed coupler inside an automated production line or a critical base station can cost thousands of dollars per minute in downtime.

To address this risk, procurement cycles are shifting away from generic off-the-shelf components toward certified OEM/ODM partnerships that offer traceable verification, direct engineering support, and customizable product features (such as proprietary housing colors, integrated LED configurations, and tailored magnetic configurations).

Key Procurement Checklist for RJ45 & Transceiver Components

Parameters Checked	Standard Specification	Xelivor Quality Assurance
Gold Plating	3u" to 30u"	50u" premium gold plating (corrosion resistance)
Insertion Loss	< 0.4 dB (for gigabit links)	Optimized pin alignment for minimized loss
PoE Compatibility	IEEE 802.3af/at	Fully rated for IEEE 802.3bt (up to 90W PoE++)
Optical Stability	Standard Tx/Rx power	Integrated DDM (Digital Diagnostics Monitoring)

China Factory 4.0: Supply Chain Resilience & Manufacturing Prowess

How Xelivor leverages strategic supply nodes, advanced quality protocols, and deep factory integration.

The shifting landscape of global hardware procurement highlights the critical need for supply chain stability. At Xelivor, our dynamic network of over 850 reliable partners guarantees a continuous supply of primary materials: from premium copper alloys and High-Performance Liquid Crystal Polymers (LCP) for connectors to specialized semiconductors for our optical assemblies.

Our quality management system is structured to provide full traceability. Our dedicated quality team of 32 QA inspectors oversees every critical production stage, ensuring that all raw parts, in-process subassemblies, and final output modules conform to strict international standards.

By using automated optical inspection (AOI), mechanical insertion testers, and micro-ohmmeter testing, we verify that every modular jack, transformer, and SFP transceiver operates within strict tolerances before dispatch.

This automated quality workflow drastically reduces production variance, delivering reliable physical connection nodes capable of operating continuously in hot, vibrating, or EMI-heavy industrial environments.

Localized Engineering Applications & Industry Scenarios

From cloud data storage architectures to rugged smart factory floors.

Hyperscale Cloud Data Centers

In high-density server racks, switching fabrics require a mix of copper and fiber systems. Multi-port stacked RJ45 connectors handle standard management ports, while SFP+ copper modules link localized servers directly to the top-of-rack switches without needing expensive active optical cables (AOCs).

Industrial Automation & Robotics

Factory environments expose network cabling to mechanical vibration, electromagnetic interference (EMI), and grease. Heavy-duty shielded RJ45 modular jacks, paired with isolated network transformers, safeguard logic controllers from high-voltage transient spikes and noise.

Telecom Edge Cells & 5G Rollouts

Outdoor cabinets require wide operational temperature support (-40°C to +85°C) and tight space allocation. Simplex BiDi SFP transceivers and robust vertical PCB RJ45 jacks allow engineers to maximize port densities inside weatherproof enclosures.

Technical FAQ: RJ45 & Optical Connectivity

Expert engineering insights into copper-to-fiber integration and mechanical layout design.

Q1: What is the main design difference between shielded and unshielded RJ45 couplers?

Shielded (STP/FTP) couplers are surrounded by a continuous metal housing (usually nickel-plated copper alloy) to ground internal signals against external electromagnetic interference (EMI). They prevent alien crosstalk, which is critical for high-frequency transmissions like Cat6a and Cat8. Unshielded (UTP) couplers rely on physical distance and twisted pair geometry to handle EMI and are typically used in lower-speed or electrically quiet environments.

Q2: Can I plug a 10GBASE-T SFP+ copper module into a port rated for standard optical SFP?

Generally, yes, provided the host equipment switch supports 10G speeds on the targeted port and the SFP module's internal MSA (Multi-Source Agreement) coding aligns with the switch brand. Advanced transceivers like our Cisco compatible SFP-10G-T-100 feature custom-coded firmware designed to negotiate properly with the host switch, enabling link lengths of up to 30m or 100m over Cat6a cabling.

Q3: Why are discrete magnetic transformers necessary in RJ45 ethernet connections?

Magnetic transformers (such as our 10/100 and 1000 Base-T discrete transformers) provide 1500V AC galvanic isolation. This isolation protects sensitive PHY chips on network PCBs from external static build-up, power surges, and common-mode noise. It also assists in impedance matching between the differential transmission lines on the PCB and the twisted-pair cable.

Q4: How does 50-micro-inch gold plating affect the lifetime of RJ45 modular jacks?

Gold is resistant to oxidation and corrosion. Applying a 50u" layer over nickel plating ensures the contacts can withstand at least 750 insertion cycles without experiencing a rise in contact resistance. This level of durability is critical for harsh industrial environments, marine applications, and frequently reconfigured data center patch panels.

Q5: What OEM customization capabilities does Xelivor offer for modular connectors?

We provide full-spectrum OEM/ODM engineering services. This includes modifying PCB footprint geometries, custom LED color combinations (such as green/yellow, green/green, or dual-color LEDs), integrated magnetics vs. discrete designs, shielding modifications, and customized product packaging. Additionally, we provide custom firmware coding for our optical and copper SFP transceivers to match exact end-user system vendor requirements.