MikroTik Compatible SFP and QSFP Modules
MikroTik-compatible SFP, SFP+, SFP28 and QSFP modules reviewed by device, RouterOS, port speed, FEC, reach and connector.
Use this reference to prepare a MikroTik optics or copper-module request. Device support, RouterOS behavior, negotiated or forced speed, FEC and thermal conditions are reviewed before quotation.
What to send for a useful compatibility check
Send the exact MikroTik device, RouterOS version, port, configured speed or auto-negotiation state, FEC setting and both-end module or device.
Host environment
Exact MikroTik device, RouterOS version and port
Port settings
Auto-negotiation or forced speed, rate select, FEC and breakout mode
Link endpoints
Both-end devices or modules, BiDi TX/RX pair and connector
Physical path
Fiber or copper category, route length, loss, thermal environment and quantity
Common MikroTik OEM references
This table is a request-planning reference, not a universal compatibility list. Exact reach can depend on fiber grade and optical budget. Confirm the current official hardware documentation for the target platform and software.
| OEM part number | Speed | Form factor | Reach | Fiber | Connector | Platform check | Axonode review scope |
|---|---|---|---|---|---|---|---|
| S-85DLC05D | 1.25G | SFP | 550m | MMF | Dual LC | Verify exact device and RouterOS | 1G SX specification and coding review |
| S-31DLC20D | 1.25G | SFP | 20km | SMF | Dual LC | Verify exact device and RouterOS | 1G 20km specification and coding review |
| S-3553LC20D | 1.25G | SFP BiDi pair | 20km | SMF | Single LC | Verify complementary 1310/1550nm endpoints | 1G BiDi pair and coding review |
| S-55DLC80D | 1.25G | SFP | 80km | SMF | Dual LC | Verify device and optical budget | 1G 80km specification and coding review |
| S-4554LC80D | 1.25G | SFP BiDi pair | 80km | SMF | Single LC | Verify exact complementary wavelength pair | 1G long-reach BiDi pair review |
| S+85DLC03D | 10G | SFP+ | 300m | MMF | Dual LC | Verify exact device and RouterOS | 10G SR specification and coding review |
| S+31DLC10D | 10G | SFP+ | 10km | SMF | Dual LC | Verify exact device and RouterOS | 10G LR specification and coding review |
| XS+31LC10D | 1.25G / 10G / 25G | SFP28 | 10km | SMF | Dual LC | Verify rate select, port and RouterOS | Multi-rate single-mode module review |
| XQ+85MP01D | 40G / 100G | QSFP28 | Up to 100m | MMF | MPO | Verify port mode, RouterOS and FEC | 40G/100G SR4 specification review |
| XQ+31LC02D | 100G | QSFP28 | 2km | SMF | Dual LC UPC | Verify port mode, RouterOS and FEC | 100G CWDM4 specification review |
| S+RJ10 | Up to 10G | SFP+ copper | 30m at 10G | Copper | RJ45 | Verify device, speed and cooling | Multi-rate copper SFP+ review |
| S-RJ01 | 10/100/1000M | SFP copper | 100m | Copper | RJ45 | Verify exact device and RouterOS | 1G copper SFP compatibility review |
MikroTik names and part numbers are used only for compatibility identification. Axonode is not affiliated with or endorsed by MikroTik.
Frequently asked questions
Why can a MikroTik link stay down even when the module rate looks correct?
Check the exact device and RouterOS support, auto-negotiation or forced speed, rate-select behavior, FEC at both ends, coding and the opposite endpoint. The visible data rate alone does not identify the cause.
What FEC information is needed for 25G or 100G?
Record the current FEC setting at both endpoints and the optic or cable standard. MikroTik documents that SFP28 and QSFP28 FEC may need explicit configuration, and both ends must use compatible settings.
How should a BiDi pair be specified?
Provide both endpoints and confirm complementary transmit and receive wavelengths in both directions. A single wavelength or one module label is not enough to validate a BiDi link.
What should be considered when using S+RJ10?
Confirm the target device, negotiated speed, copper cable category and length, available cooling and neighboring module placement. MikroTik provides specific thermal guidance for this high-power copper SFP+ module.
What should be captured for a no-link or flapping case?
Record RouterOS version, device and port, module identity, speed and negotiation state, FEC, DOM/DDM values if available, both-end settings, cable path and error counters. Then change one variable at a time during testing.
Review a MikroTik Port, FEC and Module Match
Send the device, RouterOS version, port, current speed or auto-negotiation state, FEC, both-end modules, fiber or copper path, connector, quantity and required date.
Send Your Compatibility Request