# Fiber optic SFP transceiver MicroOptics MO-G-S31121-3CL10 — 1250 Mbit/s, MSA-compliant

**URL:** https://aio.lv/en/product--microoptics-mo-g-s31121-3cl10--4800324
**Data updated:** 2026-03-07 14:57 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** MicroOptics
**Manufacturer code:** MO-G-S31121-3CL10
**EAN:** 5711045408625
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 22.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--microoptics-mo-g-s31121-3cl10--4800324

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

MicroOptics MO-G-S31121-3CL10 is an SFP fiber optic transceiver module supporting up to 1250 Mbit/s data rate. It uses the SFP interface and meets MSA certification. Compact dimensions (13.4 × 56.5 × 8.5 mm) make it suitable for switches, routers and telecommunications equipment requiring small-form-factor pluggable fiber connectivity.

## Long description

MicroOptics MO-G-S31121-3CL10 is an SFP fiber optic transceiver module designed for single-port small-form-factor pluggable applications. The module supports a data rate up to 1250 Mbit/s over fiber and conforms to industry MSA compatibility for straightforward interoperability with a wide range of switches, routers and telecommunications equipment. Its compact dimensions (13.4 × 56.5 × 8.5 mm) allow high-density deployment in chassis-based and standalone networking devices where space is limited.
Advantages
The transceiver offers a compact SFP form factor that enables easy hot-plug installation and replacement without interrupting system operation. Compliance with MSA mechanical and electrical specifications ensures predictable performance and interoperability across vendors. With support for up to 1250 Mbit/s throughput, the module fits common gigabit and legacy fiber links while minimizing power and board-space requirements. The small size and standardized interface simplify inventory and maintenance for network operators.
Suitable for
 Fiber uplinks between switches and routers in enterprise and carrier networks
 Small-form-factor installations in data centers and server cabinets
 Telecommunications and access network equipment requiring pluggable fiber modules
 Equipment refresh or expansion where MSA-compliant SFP modules are required
Key specifications
 Form factor: SFP (small-form-factor pluggable)
 Maximum data rate: 1250 Mbit/s
 Connector type: fiber optic interface (SFP optical port)
 Physical dimensions: 13.4 × 56.5 × 8.5 mm
 Standards: MSA-compliant mechanical and electrical compatibility
How to use
Install the transceiver into an available SFP slot on a compatible switch, router, or media converter by inserting the module until it clicks into place. Connect the appropriate fiber patch cable to the optical port, observing correct fiber type and polarity for the link. Configure the host device port settings (speed, duplex, and any required link parameters) according to network design. For safe removal, disable or shut down the port if required by the equipment manufacturer, then press the module latch and gently pull the transceiver out.
Usage recommendations
Use this SFP transceiver with compatible single-mode or multimode fiber and patch cords as specified by your network equipment vendor. Store and handle the module in a clean, static-free environment, protect the optical interface with dust caps when unused, and follow manufacturer guidelines for operating temperature and power budget to ensure reliable link performance.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Auto MDI/MDI-X | Yes |
| Fiber optic connector | LC |
| Maximum transfer distance | 10000 m |
| Fiber cable diameters supported (core/cladding) | 9/125 |
| Single-mode fiber (SMF) supported | Yes |
| SFP transceiver standard | LX |

### Network

| Feature | Value |
|---|---|
| SFP transceiver type | Fiber optic |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 80 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |
| Storage relative humidity (H-H) | 10 - 85 |

### Certificates

| Feature | Value |
|---|---|
| Certification | MSA |

### Features

| Feature | Value |
|---|---|
| Hot-Plug support | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 8.5 mm |
| Width | 13.4 mm |
| Depth | 56.5 mm |

## FAQ

### How much does the MicroOptics MO-G-S31121-3CL10 SFP fiber transceiver cost, and is it available for purchase?

The price is 26.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 24 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 09.07.2026 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 MicroOptics 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 MicroOptics 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/4800324/59130851_large.webp