Juniper Network 740-021308 (Finisar FTLX8571D3BCL-J1) 10Gbps SFP+ optical transceiver
Product Overview
The Juniper 740-021308 (Rev 01) is a high-performance 10Gbps SFP+ optical transceiver manufactured by Finisar. Designed for short-reach multi-mode fiber (MMF) applications, it operates at an 850nm wavelength (VCSEL laser) and delivers reliable transmission up to 300 meters over standard multi-mode fiber (OM3) or 100 meters over OM2 fiber. It is a standard SFP+ form factor module specifically qualified for Juniper MX, EX, and QFX series routers and switches.
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Key Specifications
| Parameter | Details |
|---|---|
| Juniper P/N | 740-021308 (Rev 01) |
| Finisar P/N | FTLX8571D3BCL-J1 |
| Data Rate | 10.5 Gbps (10GBASE-SR, compatible with 10G Ethernet) |
| Wavelength | 850 nm (VCSEL laser) |
| Transmission Distance | Up to 300m (OM3 MMF) / Up to 100m (OM2 MMF) |
| Fiber Type | Multi-mode fiber (MMF, 50/125 μm or 62.5/125 μm) |
| Connector | Duplex LC |
| Form Factor | SFP+ (SFF-8431 compliant) |
| Power Supply | 3.3V DC |
| Laser Class | Class 1 |
| Manufacturing Location | Made in Malaysia |
| Compatibility | Juniper MX/MX2040/MX960, EX4300, QFX5100 series |
Key Features
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10Gbps High-Speed Performance
Delivers line-rate 10Gbps throughput, supporting 10GBASE-SR Ethernet for high-density server and switch connections.
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Short-Reach MMF Optimization
Specifically engineered for 850nm VCSEL transmission over multi-mode fiber, ideal for rack-to-rack and server-to-top-of-rack (ToR) connections within data centers.
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Juniper Qualified
Factory-sealed and tested to Juniper's strict specifications (part number 740-021308), ensuring seamless integration and interoperability with Juniper networking hardware.
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Hot-Pluggable Design
Compliant with SFP+ MSA standards, allowing tool-free installation and replacement without powering down the host device, minimizing network downtime.
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Digital Optical Monitoring (DOM)
Supports real-time monitoring of optical power, temperature, voltage, and laser bias current, enabling proactive network management and troubleshooting.
Applications
- Data Center Interconnects: High-speed 10G links between servers, leaf, and spine switches.
- Enterprise Campus Backbones: Connecting wiring closets to core switches over multi-mode fiber.
- Juniper Router Uplinks: 10G uplinks for MX series routers in service provider and enterprise environments.
- High-Density Server Connections: 10GBASE-SR links for virtualization hosts and storage area networks (SANs).
Our Services
Faster delivery | Worldwide shipping | Alternative supply | Sample service | Test and warranty | In-Stock (Most products) | Quality Assured | Customization | Competitive Pricing | Cost-effective modules
For optical transceivers, we offer new original, high-quality compatible, and economical refurbished options to fit different project budgets. All modules go through the same strict testing process to ensure stable performance, plug-and-play compatibility, and reliable long-term operation.
Full range of options:
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New original: 100% genuine, brand new, with full manufacturer quality assurance.
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Compatible modules: Cost-effective, fully tested, compatible with Cisco, Huawei, Ericsson, Nokia, Juniper, HP, H3C, Arista, Dell and other major brands.
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Refurbished / second-hand: Economical, functionally tested, durable for daily use.
Strict quality control: Each optical transceiver is professionally tested before shipment, including optical power, compatibility (with Cisco, Huawei, Ericsson, Nokia, etc.), DDM function, and long-duration stability testing.
Worry-free after-sales: Warranty provided; any quality-related issues under normal use are covered for return or replacement.
About Us
Skyward Telecom, also known as Skywardtel, was established in 2009. We have always adhered to the principle ofintegrity first, with a mission to help engineers, integrators, and enterprises obtain high-quality, cost-effective communication products.
Specializing in optical transceivers, telecom modules, base station equipment, and connectivity solutions, we focus on providing multi-brand compatible optical modules (Cisco, Huawei, Ericsson, Nokia, Juniper, HP, etc.) and have served clients in more than 80 countries worldwide, earning consistent market recognition for reliability, price competitiveness, and professional technical support.
FAQ
- Who are we?
We are based in Guangdong, China, founded in 2009. Our products are sold to Northern Europe, Western Europe, Eastern Europe, North America, South America, Middle East, Africa, Asia, Oceania, and other global markets. We focus on optical transceivers, telecom modules, base station equipment, and communication accessories, with a professional team of 80-100 people.
- How can we guarantee quality?
All optical transceivers undergo professional optical performance testing before shipment. - Compatibility verification on major brand equipment (Cisco, Huawei, Ericsson, Nokia, Juniper, HP, H3C, Arista). - 100% inspection for each module to ensure stable, error-free operation. - Strict quality control for new, compatible, and refurbished products.
- What can you buy from us?
1G / 1.25G / 2.5G / 10G / 25G / 40G / 100G optical transceivers (SFP, SFP+, SFP28, QSFP+, QSFP28) - New original, compatible (Cisco/Huawei/Ericsson/Nokia compatible), and refurbished optical modules - Multi-brand compatible transceivers for base stations, switches, and data centers - Telecom accessories, fiber cables, connectors, and base station components
- Why should you buy from us not from other suppliers?
Professional focus on optical transceivers and telecom equipment, with years of industry experience. - Multiple supply options: original, compatible (for major brands), refurbished. - Strict testing for every module, ensuring compatibility with Cisco, Huawei, Ericsson, Nokia, etc. - Competitive wholesale pricing and stable stock. - Global delivery, fast shipping, and professional technical support. - Integrity-based operation, trusted by customers worldwide.
- What services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA, DDP Accepted Payment Currency: USD, EUR, GBP, HKD, CNY Accepted Payment Type: T/T, Credit Card, PayPal, MoneyGram Language Support: English, Chinese, Spanish, Arabic, French, Portuguese, German, Russian, Japanese, Korean, Hindi, Italian Welcome to contact us for the best bulk price and latest stock availability.