NufiberSFP transceiver modules, fiber media converters, industrial switches and video converters for bulk inquiry
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Guide

Transceiver selection guide

Choosing a transceiver module means matching four things at once: the rate, the reach, the fiber type, and the connector. A module that matches on three but not the fourth will not serve, and a buyer who chooses on rate alone will often order the wrong module. This guide explains the four choices in general terms, without deriving any specification from any model name.

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Fiber-strand motif, schematic only — not a product photograph.

Choose by rate first

The rate must match the equipment's port: a 10G port takes a 10G module, a 100G port takes a 100G module, and a 400G port takes a 400G module, because a module cannot make a port faster than it is, and a faster module in a slower port wastes the module's capacity. The families on this site run from 1.25G to 400G, and the category pages describe each family, so a buyer who knows the port rate can start from the right family.

Choose by reach second

The reach must match the link's distance, with margin: a 10km module for a 10km link leaves no margin, and a link that measures longer than planned — because of routing, patching, or measurement error — will fail. Choose a reach comfortably longer than the measured distance, and confirm the reach for the exact fiber type in use, because a module's reach differs by fiber type, and a reach stated for one fiber type does not apply to another.

Choose by fiber type and connector last

The fiber type must match the installed fiber: multimode fiber takes multimode modules, single mode fiber takes single mode modules, and a module for one cannot serve the other, however similar the rate appears. The connector must match the installed connectors and the equipment's ports: a module with the wrong connector cannot be plugged in without adapters, and adapters add loss and failure points. Confirm all four — rate, reach, fiber type, connector — for the exact equipment, in the inquiry, before ordering.

What not to choose by

Do not choose by model name alone, because a model name does not evidence a specification, and a model that looks similar to a known model may differ in reach, fiber type, or connector. Do not choose by price alone, because the cheapest module that mismatches is the most expensive mistake: it costs the module, the shipping, the delay, and the replacement. Do not choose by a general compatibility statement alone, because a general statement is not a confirmation for your equipment. Choose by the four matched counts, confirmed in writing for your equipment.

What to confirm before ordering

Name the equipment, its port rate, the link distance, the fiber type, the connectors, the quantity, and the market. Ask for the specification for the exact model, the minimum order quantity, the lead time with its meaning, the warranty terms, the payment and shipping terms, and the certificates that apply to your market, by name, with documents attached.

Before payment, confirm the minimum order quantity, lead time, payment, shipping and warranty terms for your order. Certificates are available upon request.