MikroTik S+31DLC10D Compatible 10GBASE-LR SFP+ Transceiver — 1310nm, 10km, Single-Mode, LC Duplex
Warranty: Lifetime
10G single-mode to 10 km for MikroTik routers and switches
S+31DLC10D-C — MikroTik S+31DLC10D compatible 10GBASE-LR SFP+, 1310nm, 10km
→ Single-mode fiber only. 10GBASE-LR runs on OS2 single-mode fiber with LC connectors. For multimode fiber inside a building, use a 10GBASE-SR optic instead.
Compatible with: MikroTik S+31DLC10D
SKU: S+31DLC10D-C
Description: 10GBASE-LR SFP+ transceiver, 1310nm, 10 km, single-mode, LC duplex
MikroTik's S+31DLC10D is a 10G SFP+ single-mode module at 1310nm for up to 10 km, with digital diagnostics. This compatible module matches that optical spec and is coded and tested for MikroTik.
Both ends of the link need a 10GBASE-LR optic. It interoperates with other vendors' 10GBASE-LR modules at the far end.
Which One Do I Need?
| Fiber and distance | Optic |
|---|---|
| Single-mode, up to 10 km, MikroTik | S+31DLC10D-C — this listing |
| Single-mode, up to 10 km, Cisco | SFP-10G-LR Cisco compatible |
| Multimode, short reach | 10GBASE-SR (ask for MikroTik coding) |
| Same rack, copper | A 10G SFP+ DAC — see the MikroTik DAC guide |
Technical Specifications
| Specification | Value |
|---|---|
| Compatible part number | MikroTik S+31DLC10D |
| Standard | 10GBASE-LR |
| Form factor | SFP+ |
| Wavelength | 1310nm |
| Reach | 10 km on single-mode fiber |
| Connector | LC duplex |
| Diagnostics | DDM / DOM |
| Operating temperature | 0 to 70°C |
| Coding | MikroTik |
| Condition | New |
| Warranty | Lifetime, backed by Resilient Tec |
Source: MikroTik S+31DLC10D product page for the reference optical specification.
Good to Know
- Clean the connectors. Single-mode links are sensitive to dirty end faces; inspect and clean before you connect.
- Short runs. On very short single-mode patches, an LR optic is within spec; no attenuator is normally needed at 10G LR.
Quick Checklist — Is This the Right Optic?
Your MikroTik device has an SFP+ port. Your fiber is single-mode with LC connectors. The run is 10 km or less and the far end is also 10GBASE-LR.
Availability
New, coded and tested · Ships from Resilient Tec in Knoxville, TN · Free standard shipping on US orders.
We confirm stock and lead time with you before an order ships. Need several, or a matching set? Request a quote →
Warranty: lifetime, backed by Resilient Tec — not a manufacturer term. When something fails you reach a named seller in the US, not a ticket queue.
You Might Also Need
- SFP-10G-LR Cisco compatible — the Cisco end of a mixed link
- MikroTik CRS312-4C+8XG-RM
Related Guides
10G single-mode to 10 km for MikroTik routers and switches
S+31DLC10D-C — MikroTik S+31DLC10D compatible 10GBASE-LR SFP+, 1310nm, 10km
→ Single-mode fiber only. 10GBASE-LR runs on OS2 single-mode fiber with LC connectors. For multimode fiber inside a building, use a 10GBASE-SR optic instead.
Compatible with: MikroTik S+31DLC10D
SKU: S+31DLC10D-C
Description: 10GBASE-LR SFP+ transceiver, 1310nm, 10 km, single-mode, LC duplex
MikroTik's S+31DLC10D is a 10G SFP+ single-mode module at 1310nm for up to 10 km, with digital diagnostics. This compatible module matches that optical spec and is coded and tested for MikroTik.
Both ends of the link need a 10GBASE-LR optic. It interoperates with other vendors' 10GBASE-LR modules at the far end.
Which One Do I Need?
| Fiber and distance | Optic |
|---|---|
| Single-mode, up to 10 km, MikroTik | S+31DLC10D-C — this listing |
| Single-mode, up to 10 km, Cisco | SFP-10G-LR Cisco compatible |
| Multimode, short reach | 10GBASE-SR (ask for MikroTik coding) |
| Same rack, copper | A 10G SFP+ DAC — see the MikroTik DAC guide |
Technical Specifications
| Specification | Value |
|---|---|
| Compatible part number | MikroTik S+31DLC10D |
| Standard | 10GBASE-LR |
| Form factor | SFP+ |
| Wavelength | 1310nm |
| Reach | 10 km on single-mode fiber |
| Connector | LC duplex |
| Diagnostics | DDM / DOM |
| Operating temperature | 0 to 70°C |
| Coding | MikroTik |
| Condition | New |
| Warranty | Lifetime, backed by Resilient Tec |
Source: MikroTik S+31DLC10D product page for the reference optical specification.
Good to Know
- Clean the connectors. Single-mode links are sensitive to dirty end faces; inspect and clean before you connect.
- Short runs. On very short single-mode patches, an LR optic is within spec; no attenuator is normally needed at 10G LR.
Quick Checklist — Is This the Right Optic?
Your MikroTik device has an SFP+ port. Your fiber is single-mode with LC connectors. The run is 10 km or less and the far end is also 10GBASE-LR.
Availability
New, coded and tested · Ships from Resilient Tec in Knoxville, TN · Free standard shipping on US orders.
We confirm stock and lead time with you before an order ships. Need several, or a matching set? Request a quote →
Warranty: lifetime, backed by Resilient Tec — not a manufacturer term. When something fails you reach a named seller in the US, not a ticket queue.
You Might Also Need
- SFP-10G-LR Cisco compatible — the Cisco end of a mixed link
- MikroTik CRS312-4C+8XG-RM