# Network transceiver module MikroTik S-31DLC20D SFP 1250 Mbit/s 1310 nm LC

**URL:** https://aio.lv/en/product--mikrotik-2199817--11190697
**Data updated:** 2026-03-14 12:28 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** MikroTik
**Manufacturer code:** 2199817
**EAN:** 2610000002416
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 21.48 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mikrotik-2199817--11190697

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

MikroTik S-31DLC20D is an SFP fiber optic transceiver module with LC connector designed for single-mode links. It supports a maximum data rate of 1250 Mbit/s and operates at 1310 nm wavelength. Intended for use in compatible MikroTik switches and routers to extend fiber connectivity over single-mode fiber runs.

## Long description

MikroTik S-31DLC20D SFP 1250 Mbit/s 1310 nm LC is a compact fiber optic transceiver module designed for single-mode links. The module supports 1.25 Gbit/s (1250 Mbit/s) data rate over single-mode fiber at a 1310 nm wavelength and uses LC connectors. It is intended to extend fiber connectivity in compatible MikroTik switches and routers and is suitable for long-distance links when installed in devices that accept SFP form-factor transceivers.
Advantages
The S-31DLC20D combines a standard SFP interface with 1310 nm single-mode optics to provide reliable gigabit-class fiber connectivity. It supports diagnostic monitoring (DDM) for real-time status of optical parameters and is tested for compatibility with a range of MikroTik devices. Its LC connector and single-mode optics enable longer reach compared with multimode modules, making it appropriate for backbone links or point-to-point connections up to 20 km over single-mode fiber.
Suitable for
 Point-to-point single-mode fiber links up to 20 km
 Upgrading or extending fiber ports on compatible MikroTik switches and routers
 Replacing or adding SFP transceivers in networking equipment that accepts standard SFP modules
 Backbone or aggregation links within campus or ISP networks
Key specifications
 Form factor: SFP (small form-factor pluggable)
 Data rate: 1250 Mbit/s (1.25 Gbit/s)
 Wavelength: 1310 nm
 Fiber type: single-mode fiber (SMF)
 Connector type: LC duplex
 Maximum link distance: up to 20 km (single-mode, typical conditions)
 Diagnostics: Digital Diagnostic Monitoring (DDM) supported
How to use
Insert the SFP module into an empty SFP slot on a compatible switch or router while the host device is powered on or according to the device manufacturer’s hot-plug guidance. Connect a duplex LC single-mode fiber patch cable to the module’s LC connector, ensuring correct transmit/receive orientation. Verify link status and speed in the host device’s interface or management software. Use diagnostic monitoring to check optical power, temperature, and other parameters if supported by the host.
Usage recommendations
Use clean LC connectors and follow standard fiber handling procedures to avoid contamination and signal loss. Confirm device compatibility and firmware support for SFP modules in the host equipment. For reliable long-distance links, use single-mode fiber rated for the desired distance and test the link after installation. Store unused modules in protective packaging to prevent dust ingress.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Wavelength | 1310 nm |
| Fiber optic connector | LC |
| Maximum transfer distance | 20000 m |

### Features

| Feature | Value |
|---|---|
| Compatible products | RB260GS,RB2011LS, RB2011LS-IN, RB2011UAS-IN, RB2011UAS-RM, RB2011UAS-2HnD, RB2011UAS-2HnD-IN, CCR1036-12G-4S |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 85369010 |

## FAQ

### How much does the MikroTik S-31DLC20D SFP 1250 Mbit/s 1310 nm cost, and is it available for purchase?

The price is 25.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All MikroTik products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized MikroTik service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/11190697/61973288_large.webp