# SFP module MikroTik S-35LC20D — single-mode fiber optic transceiver, LC connector, 20 km reach

**URL:** https://aio.lv/en/product--mikrotik-s-35lc20d--10468435
**Data updated:** 2026-02-12 21:56 (EET)
**Category:** Network Media Converters
**Manufacturer:** MikroTik
**Manufacturer code:** S-35LC20D
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 75.99 €
**Prices and availability valid until:** 2026-09-03 23:59
**Price without VAT (21%):** 62.80 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mikrotik-s-35lc20d--10468435

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.09.2026 | free |
| Pickup points | 04.09.2026 | 1.79 EUR |
| Courier delivery to door | 04.09.2026 | 4.99 EUR |

## Summary description

MikroTik S-35LC20D is an SFP single-mode fiber optic transceiver with an LC connector and a 20 km transmission range. Designed for compatibility with MikroTik equipment and SFP ports on switches and routers, it enables long-distance fiber links for backbone, ISP or enterprise network connections. Ideal for extending Ethernet over single-mode fiber where reliable, low-latency links are required.

## Long description

MikroTik S-35LC20D is a single-mode SFP fiber optic transceiver with an LC connector designed to establish reliable point-to-point fiber links up to 20 km. Compatible with MikroTik devices and standard SFP ports on switches and routers, this transceiver converts electrical Ethernet signals to optical form for long-distance backbone, ISP or enterprise connections. The module supports straightforward hot-plug installation and is intended for networks requiring low latency and stable throughput over single-mode fiber.
Advantages
The module provides 20 km reach on single-mode fiber using an LC connector, enabling distance extension without additional repeaters. Compact SFP form factor allows flexible deployment in routers and switches with SFP slots. Designed for industry-standard optical interfaces, it offers low power consumption and passive cooling when installed, maintaining stable performance in typical network environments. Hot-pluggable design simplifies upgrades and replacements without interrupting adjacent ports.
Suitable for
 Long-distance Ethernet links between buildings or sites (up to 20 km)
 ISP access and aggregation layers requiring single-mode fiber
 Enterprise backbone connections and campus networks
 Fiber uplinks for switches and routers with SFP ports
Key specifications
 Optical type: single-mode (SMF)
 Connector: LC duplex
 Maximum reach: 20 km over single-mode fiber
 Form factor: SFP (hot-pluggable)
 Wavelength: single-wavelength optical transmission suitable for long-distance links
 Data interface: Ethernet over optical fiber via SFP port
 Cooling: passive (device dissipates heat without built-in fans)
How to use
Install the SFP module into an available SFP slot on a compatible MikroTik switch or router and ensure the module is fully seated. Connect LC duplex single-mode fiber patch cables between transceivers on both ends of the link, observing correct transmit/receive pairing. Verify link status on both devices' management interfaces and configure interface parameters as required by your network (speed, duplex and any optical diagnostics). For hot-plug operations, insert or remove the module while the device is powered on only if the host equipment supports hot-plug; otherwise, power down according to vendor guidance.
Usage recommendations
Use single-mode fiber with appropriate attenuation and connector cleanliness for best performance. Keep LC connectors clean and use dust caps when not connected. Match fiber type and polarity on both ends and verify optical power budget for 20 km links; if uncertain, perform optical power and signal tests. Use compatible MikroTik or standards-compliant SFP ports to avoid interoperability issues.

## FAQ

### How much does the SFP module MikroTik S-35LC20D cost, and is it available for purchase?

The price is 75.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 29 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 01.09.2026 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. 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