Black Box EFN310-020M-STST

Overview

The Black Box EFN310-020M-STST is a singlemode fiber optic cable designed for reliable long-distance data transmission, supporting runs up to 20 meters (65.6 feet). It features a 9/125 µm core that enables signal travel over distances significantly longer than multimode cables, making it well suited for network environments where maintaining signal integrity is essential. The cable’s compact LC connectors and durable construction ensure stable connectivity in demanding indoor setups such as data centers and enterprise networks.

Key features

• Singlemode fiber core that supports extended transmission distances with minimal signal loss
• Precision ceramic connectors that reduce insertion loss to approximately 0.2 dB, ensuring efficient data transfer
• OFNR PVC-certified riser jacket designed for safe vertical installation between floors in buildings
• Compact LC connectors that optimize space usage without compromising performance
• High crush resistance up to 750 N/cm, providing durability in environments with physical stress
• Wide operating temperature range from -4 to 158 degrees Fahrenheit, suitable for various indoor conditions

Key specs

• Fiber type: Singlemode 9/125 µm core
• Length: 20 meters (65.6 feet)
• Connector type: LC to LC
• Insertion loss: Typical 0.2 dB
• Cable jacket: OFNR PVC-certified riser
• Crush resistance: Up to 750 N/cm
• Operating temperature: -4 to 158 °F (-20 to 70 °C)

Connectivity and compatibility

This cable is compatible with any networking equipment that supports LC connectors and singlemode fiber optics, including telecom devices, switches, and routers commonly used in enterprise and data center environments. Its compact LC connectors make it a practical choice for high-density patch panels and fiber distribution frames where space is limited.

Installation and setup

The cable’s riser-rated OFNR jacket allows safe installation in vertical spaces such as between floors, meeting building code requirements for indoor use. Its crush resistance and temperature tolerance ensure it maintains performance even in physically demanding or temperature-variable environments. The LC connectors simplify termination and reduce the footprint in patch panels, making setup straightforward for network technicians.

Ideal uses and environments

This fiber optic cable fits well in professional settings requiring long-distance, high-quality data transmission such as data centers, telecom rooms, and enterprise network backbones. It is a strong choice for installations where space is at a premium and durability is critical, including vertical cable runs in multi-story buildings. Network administrators looking for a dependable cable that balances performance and robustness will find this model well suited to their needs.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

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Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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