MikroTik S+RJ10 10 Gbps SFP+ to RJ45 Module - Upgrade to 10G

In this review the MikroTik S+RJ10 is evaluated as a practical, cost-conscious way to add high speed copper connectivity to devices with SFP+ ports. It is aimed at network builders who want up to 10 Gbps over familiar twisted-pair cabling without installing fiber, and the single biggest reason to buy is that it converts standard SFP+ ports into a 10 Gbps RJ45 interface so existing MikroTik hardware and other compatible devices can be upgraded quickly and with minimal fuss.

Key Features

• 10 Gbps copper support: Enables up to 10 Gbps speeds over regular twisted-pair cables so existing SFP+ ports can be used without optical fiber.
• Wide link rate range: Negotiates 10 Mbps through 10 Gbps, which helps compatibility with mixed-speed endpoints and intermediate switches.
• Extended distance: Supports connectivity over copper cabling to distances up to 200 m for flexible deployment in rack and campus setups.
• Jumbo frame support: New revision adds jumbo frames up to 10218 Bytes for improved throughput with large transfers.
• Broad device support: Works in MikroTik devices with active cooling and in many passive-cooled devices with added ventilation when needed.

Who It's For

The S+RJ10 is best for network administrators and home lab builders who already have routers or switches with SFP+ ports and want a straightforward way to add 10 Gbps RJ45 connectivity without running fiber. It is particularly useful where existing copper infrastructure is present or when short-term trials of 10G are needed.

Those who need completely passive, low-heat solutions or are highly sensitive to operating temperature should consider alternatives or ensure additional cooling, because some users report sustained heat under heavy loads. Also, if maximum guaranteed distance or optical reach is required, an optical SFP+ solution would be preferred.

Pros & Cons

Pros

• Supports full 10 Gbps over familiar Ethernet cabling, making upgrades simple and cost effective.
• Works across a broad set of link speeds for compatibility with older gear and intermediate links.
• New firmware/revision fixes link speed reporting and adds jumbo frame support for better performance with large packets.

Cons

• Runs noticeably hot under load on some systems, so extra cooling may be required in passive environments.

Specifications

Our Verdict

The MikroTik S+RJ10 is a pragmatic upgrade option for users who want to avoid fiber and leverage existing copper cabling while gaining 10 Gbps links. It delivers broad link compatibility and useful features like jumbo frame support, but buyers should plan for additional cooling when installing in passive systems. Overall it provides good value for upgrading SFP+ ports to RJ45 10G in many practical deployments.

Frequently Asked Questions

Will this module work in non-MikroTik SFP+ ports?
Yes, it is compatible with many devices that accept SFP+ modules, but verify device compatibility and link negotiation behavior before wide deployment.

Does it require extra cooling?
Devices with active cooling are fine, but passive-cooled systems may need added airflow because some users report higher operating temperatures.

What cable and distance can be expected?
It uses standard twisted-pair cabling and supports up to 200 m depending on cable quality and speed negotiated.