# SFP optical module MaxLink ML-S5531out-3 WDM Tx1550nm Rx1310nm 3km

**URL:** https://aio.lv/en/product--maxlink-ml-s5531out-3--10936444
**Data updated:** 2026-02-13 15:43 (EET)
**Category:** Network Media Converters
**Manufacturer:** MaxLink
**Manufacturer code:** ML-S5531out-3
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--maxlink-ml-s5531out-3--10936444

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

SFP optical module MaxLink ML-S5531out-3 is a WDM transceiver with Tx at 1550 nm and Rx at 1310 nm, designed for single-fibre links up to 3 km. It enables compact hot-pluggable Ethernet or fiber network connections, suitable for switches and media converters. Provides simple fiber extension and network segmentation without additional cabling.

## Long description

SFP optical module MaxLink ML-S5531out-3 is a compact WDM transceiver that transmits at 1550 nm and receives at 1310 nm, designed for single-fibre links up to 3 km. The module is hot-pluggable and fits standard SFP ports on switches, media converters and other network equipment. It enables single-fibre bi-directional connections for Ethernet and fiber networks, allowing fiber extension and network segmentation without running a second fibre.
Advantages
The MaxLink ML-S5531out-3 offers a small form factor SFP design with WDM capability to carry transmit and receive signals on a single fibre, reducing cabling needs and simplifying installation. Hot-pluggable compatibility supports in-field insertion and replacement without powering down equipment. Its operation at 1550 nm (Tx) and 1310 nm (Rx) supports common single-mode fiber links and provides a straightforward solution for extending links up to 3 km.
Suitable for
Extending Ethernet links between switches over single-mode fiber up to 3 km
Connecting media converters where single-fibre bi-directional operation is required
Network segmentation or uplink links in wiring closets and data cabinets
Environments where limited fiber availability makes single-fibre WDM necessary
Key specifications
Form factor: SFP (small form-factor pluggable)
Wavelengths: Tx 1550 nm, Rx 1310 nm
Maximum link distance: up to 3 km on single-mode fiber
Interface: duplex optical via single fibre WDM operation
Application: Ethernet and fiber network connections for switches and media converters
How to use
Insert the ML-S5531out-3 module into a compatible SFP port on a switch, media converter or other network device while the device is powered on or off as supported by the host. Connect the single-mode fiber using appropriate connectors and ensure the remote end uses the complementary WDM module (with Tx/Rx wavelengths reversed). Configure the host port for the desired network speed and duplex settings if required by the equipment, then verify link status and diagnostics through the host device management interface.
Usage recommendations
Use low-loss single-mode fiber with proper connector cleanliness and appropriate optical attenuators if the host devices require power margin adjustments. Verify compatibility with the host device's SFP support list and follow standard ESD precautions during installation.

## FAQ

### How much does the SFP optical module MaxLink ML-S5531out-3 cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 01.07.2026 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 MaxLink 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 MaxLink 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

## Image

https://aio.lv/img/cache/product/10936444/61244874_large.webp