Network transceiver module MikroTik S35LC20D compatible — fiber optic SFP/SFP+ form-factor

The MikroTik S35LC20D compatible network transceiver module is a hot-pluggable fiber optic SFP/SFP+ form-factor module designed for insertion into SFP or SFP+ ports on switches, routers and media converters. It provides an optical interface for single-mode or multimode fiber links (depending on the specific optical variant) to extend network segments, create uplinks or connect remote sites. The module is intended as a compatible replacement for systems that accept SFP/SFP+ transceivers and supports standard fiber-optic connectivity workflows used in enterprise and service-provider environments.

Advantages

This compatible MikroTik S35LC20D module offers simple hot-swap installation without powering down equipment and enables flexible placement of fiber links within existing SFP/SFP+ slots. It supports standard plug-and-play behavior with devices that accept SFP/SFP+ optics and reduces the need to change chassis or network hardware when adding or extending fiber interfaces. The compact SFP/SFP+ form factor helps conserve port density while providing optical reach suitable for many campus, data center and building-to-building applications.

Suitable for

• Extending LAN segments over optical fiber
• Uplinking switches to core routers or aggregation devices
• Connecting remote buildings or branch offices
• Replacing or adding compatible SFP/SFP+ fiber ports on network gear

Key specifications

• Form factor: SFP/SFP+ hot-pluggable transceiver
• Interface type: optical fiber (single-mode or multimode depending on variant)
• Application: fiber optic link for SFP/SFP+ ports on switches, routers and media converters
• Physical connector: standard SFP/SFP+ cage with optical fiber connector (LC or compatible)
• Typical use: uplink, link extension, interbuilding connectivity

How to use

Insert the module into an available SFP or SFP+ port on the target device until it seats securely. Connect the appropriate fiber cable to the module’s optical connector, ensuring correct transmitter/receiver alignment. Verify link status using the host device’s port LEDs or management interface and configure link parameters (speed, duplex and auto-negotiation) as required by the network. To remove the module, power down the port if required by the device or follow the vendor-recommended hot-swap procedure and carefully withdraw the transceiver.

Recommendations

Use fiber patch cables and connectors that match the module’s optical variant (single-mode or multimode) and connector type. Verify compatibility with the host device’s SFP/SFP+ cage and software before deployment, and follow ESD precautions when handling the transceiver. For long-distance links, select the appropriate optical variant and ensure correct attenuation and dispersion management.