Xelivor Xelivor

Optical Transceivers Manufacturers & Factory in Seoul

Empowering Next-Generation Hyperscale Networks with Premium Active Optoelectronics & Interconnect Interface Technology Engineered in Seoul’s Advanced Tech Corridor.

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Seoul Metro Infrastructure Grade - Core Featured Products

High-reliability optical transceivers and high-speed cages optimized for Seoul-based telecommunication backbones and Edge-Data configurations.

1000BASE-ZX SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module

1000BASE-ZX SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module (Seoul Smart Metro Optimized)

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Bidirectional Single Mode 1G BiDi SFP 1310nm/1550nm 10km Simplex LC SMF Optical Transceiver Module

Bidirectional Single Mode 1G BiDi SFP 1310nm/1550nm 10km Simplex LC SMF Optical Transceiver Module

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Cisco SFP-10/25G-CSR-S Compatible Dual-rate 10G/25G SFP28 Transceiver 400m MMF Optical Transceiver Module

Cisco SFP-10/25G-CSR-S Compatible Dual-rate 10G/25G SFP28 Transceiver 400m MMF Optical Transceiver Module

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1658390-2 2170286-1 Right Angle Press-Fit Shielded Ganged 2x4 SFP Receptacle Cage

1658390-2 2170286-1 Right Angle Press-Fit Shielded Ganged 2x4 SFP Receptacle Cage (Seoul High-Density Design)

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Seoul’s Telecommunication Infrastructure & Optical Optoelectronics Ecosystem

The convergence of South Korea's high-density fiber networks (K-Network 2030) and advanced manufacturing hubs located in Seoul.

Information Gain Insight: As global network infrastructures shift rapidly towards 400G and 800G optical pipelines, Seoul is emerging as a critical nexus for research, component validation, and strategic manufacturing. Positioned close to elite research labs, IT centers in Pangyo Techno Valley, and the Gasan Digital Complex, local manufacturer clusters deliver precision assembly that complies with strict K-Network and international telecom criteria.

Seoul’s metropolitan region represents one of the world's most densely packed digital grids. Known globally for pioneering nationwide commercial 5G deployments and leading early experimental work on 6G physical layers, the city provides a highly specialized ecosystem for optoelectronics. Our facility leverages this unique proximity to regional IC fabs, precision optics testing institutes, and high-frequency labs. This ensures that every transceiver batch we produce is optimized for low thermal dissipation, high electromagnetic compatibility (EMC), and minimal signal degradation.

For international buyers and enterprise network architects, source-level manufacturing in Seoul represents a secure alternative to volatile trade corridors. Proximity to Incheon International Airport (ICN) guarantees seamless air cargo routing, while compliance with strict Korean environmental, safety, and manufacturing protocols (including KC Certification and eco-design standards) ensures structural product integrity from the component level up.

Precision Optical Engineering Standards

Why technical lead times and component architecture define our manufacturing output in Seoul.

Multi-Source Agreement (MSA) Compliance

All transceivers strictly comply with SFF, SFP28, QSFP28, and QSFP-DD MSA guidelines. Built-in EEPROM firmware is programmed to match major network equipment suppliers including Cisco, Juniper, Arista, and HP.

100% Real-System Validation

We test every module on live enterprise switches and OTDR test beds. Utilizing advanced Bit Error Rate Testing (BERT) and eye-diagram validation, we guarantee error-free performance under variable thermal stress levels.

Localized EMI / EMC Shielding

Our SFP and RJ45 connector cages are constructed with premium alloys and advanced spring fingers. This provides robust electromagnetic interference (EMI) containment, critical for high-density network cards.

Interconnect Ecosystem & High-Speed Connector Assemblies

Robust hardware components developed to support optical engine integration and physical layer stability.

Ethernet Vertical Jack RJ45 Female Socket HFJV1-1G46RL HFJV1-2450-L55RL 1840459-1 1840453-1

Ethernet Vertical Jack RJ45 Female Socket HFJV1-1G46RL HFJV1-2450-L55RL 1840459-1 1840453-1

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1000Base-T LAN Magnetic Transformer Modules HST-50001SCR / HST-50004SCR / HST-50006SCR

1000Base-T LAN Magnetic Transformer Modules HST-50001SCR / HST-50004SCR / HST-50006SCR

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2007637-4 TE Compatible Through Hole 80P 2x2 Ports Press-Fit EMI Shielded SFP+ Cage With Connector

2007637-4 TE Compatible Through Hole 80P 2x2 Ports Press-Fit EMI Shielded SFP+ Cage With Connector

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51F-1203GYD2NL Single Port 10/100 Base-T 8 Pin Vertical RJ45 Connector

51F-1203GYD2NL Single Port 10/100 Base-T 8 Pin Vertical RJ45 Connector

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Xelivor Optoelectronics: Advanced Optical Transceiver Production

Delivering precision, high-capacity manufacturing to enterprise, datacom, and telecom markets globally.

Xelivor Optoelectronics Co., Ltd. is a professional manufacturer of optical transceivers and fiber connectivity solutions, dedicated to serving global data center, telecom, enterprise network, and cloud computing industries. Established in 2016, the company operates from a modern manufacturing facility covering 386 m² and has built a strong reputation for delivering reliable, high-performance optical communication products worldwide.

8+
Years Experience
$12M+
Annual Export Revenue
68
R&D Engineers
32
QA Inspectors
85+
New Products Annually

With over 8 years of industry experience and 6 years of export experience, Xelivor has achieved annual export revenues exceeding USD 12 million. Our products are exported to customers across North America, Europe, Southeast Asia, the Middle East, and South America, supporting a wide range of networking applications from enterprise infrastructure to hyperscale data centers.

Xelivor specializes in the design, development, and production of optical transceivers, including SFP, SFP+, SFP28, QSFP28, QSFP-DD, OSFP, DAC, and AOC solutions. Backed by a dedicated R&D team of 68 engineers, the company continuously invests in innovation and launched more than 85 new products in the past year to meet the evolving demands of high-speed optical networks.

Quality is at the core of our operations. Our quality management system incorporates incoming material inspection, in-process quality control, aging tests, compatibility verification, optical parameter testing, and final product inspection. A professional quality assurance team of 32 inspectors ensures every product meets strict international standards before shipment.

The company maintains long-term cooperation with more than 850 supply chain partners, enabling stable sourcing, efficient production, and rapid delivery capabilities. Our flexible manufacturing system supports OEM, ODM, private label, customized firmware, customized labeling, and packaging services to satisfy diverse customer requirements.

As a company with strong independent R&D capabilities, advanced testing equipment, and a customer-oriented approach, Xelivor serves distributors, system integrators, telecommunications operators, data center providers, network equipment vendors, and enterprise customers worldwide. Driven by innovation, quality, and partnership, Xelivor Optoelectronics Co., Ltd. remains committed to providing cost-effective, reliable, and future-ready optical communication solutions for global networking infrastructure.

Our Advanced Production Cleanroom & Laboratory Facilities

Xelivor Optical Assembly Floor
Precision Optoelectronic Alignment Test
High-Speed Switch Compatibility Lab
Final Quality Assurance & Packaging

Technical Roadmap & Next-Generation High-Speed Interconnects

How Xelivor prepares customer environments for the transition to 400G, 800G, and Co-Packaged Optics (CPO).

In high-bandwidth applications, thermal management and power consumption are the primary bottlenecks. Current industry architectures rely heavily on pluggable form factors. However, as link demands transition from 100G/200G to 400G/800G (specifically utilizing PAM4 signaling formats), the loss margins budget becomes extremely tight. Xelivor's engineering team is developing solutions utilizing low-power DSP configurations and Silicon Photonics (SiPh) platforms to decrease power consumption below 12W for 800G modules.

Parameter 10G SFP+ 25G SFP28 100G QSFP28 400G QSFP-DD
Modulation Type NRZ NRZ NRZ / PAM4 PAM4 (50G/100G per Lane)
Power Consumption < 1.0W < 1.5W < 3.5W < 10W - 12W
Max Link Distance Up to 80km (ZR) Up to 40km (ER) Up to 80km (ZR4) Up to 10km (FR4/LR4) / DCI Edge
Primary Application Enterprise Core / Metro Access 5G Front-Haul / ToR Switches DCI Core / Hyperscale Spine AI Cloud Fabrics / Next-Gen Spine

Furthermore, standardizing electromagnetic isolation techniques is a key area of development. High-speed signals passing through switches and cages encounter severe return loss. By optimizing the contact layout and implementing custom EMI gasket materials on our SFP+ cages and RJ45 connectors, we consistently reduce electromagnetic emissions by 3dB compared to typical generic components. This enhancement reduces packet drop rates in environments with high EMI profiles.

Frequently Asked Questions

Answers to common technical, logistics, and capabilities questions from network operators and procurement directors.

How does Xelivor ensure compatibility with proprietary switch hardware? +
We program the EEPROM/MCU of every transceiver module with vendor-specific software parameters. We maintain a compatibility validation library utilizing switches from Cisco, Arista, Juniper, HP, Dell, and Huawei. When ordering, customers can specify their host devices to ensure seamless integration right out of the box.
Are Xelivor optical transceivers compliant with MSA standards? +
Yes, our entire line of transceivers is fully compliant with Multi-Source Agreement (MSA) standards (including SFF-8431, SFF-8472, SFF-8636, and QSFP-DD specifications). This guarantees reliable mechanical fit and electrical performance in any standard-compliant hardware platform.
What environmental and compliance certifications do your products carry? +
Our products comply with RoHS, REACH, CE, and FCC standards. Where applicable for regional deployments (specifically in the South Korean market), our components can be certified under KC guidelines to ensure worry-free procurement for municipal networks and national telecom operators.
What custom options are available under OEM/ODM agreements? +
We offer custom options including customized firmware configurations, tailored labeling, unique casing designs (such as specialized heat sinks or pull-tab designs), and custom packaging configurations. Our R&D team works directly with engineers to customize products for specific system requirements.
What is the standard production and shipping lead time from your factory? +
Standard components are typically built and tested within 3 to 7 working days. For bulk orders or highly customized products, the typical lead time is 2 to 3 weeks. Proximity to Incheon International Airport allows us to arrange international express shipments that arrive worldwide within 3 to 5 business days.

Complete Optical & Interconnect Product Catalog

The complete range of passive structural cages, high-frequency RJ45 interfaces, and active transceivers designed for high-density architectures.

2110069-1 TE Compatible Ganged 1x4 Ports EMI Shielded Press Fit SFP+ Cage With Light Pipe

2110069-1 TE Compatible Ganged 1x4 Ports EMI Shielded Press Fit SFP+ Cage With Light Pipe

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RV1-12108K1A 10/100 Base-t Vertical Top Entry Ethernet Magnetic RJ45 Connector With Leds

RV1-12108K1A 10/100 Base-t Vertical Top Entry Ethernet Magnetic RJ45 Connector With Leds

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CAT6 Network Jack Stack Dual USB 3.0 RJ45 Combo Connector RJSE1Z0500-R RJSE1Z0500AR RJSE4AC0251A-R RJPE1UC0010-R

CAT6 Network Jack Stack Dual USB 3.0 RJ45 Combo Connector RJSE1Z0500-R RJSE1Z0500AR RJSE4AC0251A-R RJPE1UC0010-R

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With Dual USB 10/100 Base-T With Leds RJ45 Modular Jack LPJU5125BONL

With Dual USB 10/100 Base-T With Leds RJ45 Modular Jack LPJU5125BONL

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0811-2X6R-19-F DU6T201A1 J20-0015NL 100 Base-T 2X6 Port RJ45 Jack Socket Connector

0811-2X6R-19-F DU6T201A1 J20-0015NL 100 Base-T 2X6 Port RJ45 Jack Socket Connector

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XRJV-01V-4-D12-380 Vertical Top Entry 10/100 Base-t Ethernet Magnetic RJ45 Jack With Leds

XRJV-01V-4-D12-380 Vertical Top Entry 10/100 Base-t Ethernet Magnetic RJ45 Jack With Leds

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1-406541-5 Shielded Without Magnetics 8P8C RJ45 Modular Jack

1-406541-5 Shielded Without Magnetics 8P8C RJ45 Modular Jack

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1500VAC/1mA/60S 10/100 BASE Discrete Magnetic Lan Transformer HST-4047SCR / HST-4047SXCR

1500VAC/1mA/60S 10/100 BASE Discrete Magnetic Lan Transformer HST-4047SCR / HST-4047SXCR

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Contact Our Seoul Engineering & Sales Division

Discuss your custom optical transceivers, SFP/SFP+ shielding, and custom firmware programming needs directly with our technical support team.

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