# ProLabs GLC-SX-MMD-C SFP Fiber Optic Transceiver Module 1250 Mbit/s 850 nm

**URL:** https://aio.lv/en/product--sonstige-glc-sx-mmd-c--12471574
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Network Transceiver Modules
**Manufacturer:** Sonstige
**Manufacturer code:** GLC-SX-MMD-C
**EAN:** 4260380720011
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 21.99 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 18.17 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sonstige-glc-sx-mmd-c--12471574

## 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 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The ProLabs GLC-SX-MMD-C is a high-performance SFP fiber optic transceiver module designed for reliable network connectivity. It supports a maximum data transfer rate of 1250 Mbit/s and operates at an 850 nm wavelength. This RoHS-compliant module is built for professional networking environments, ensuring stable data transmission at 3.3 V. It is an ideal solution for upgrading or maintaining fiber optic network infrastructure.

## Long description

The ProLabs GLC-SX-MMD-C is a high-performance SFP fiber optic transceiver module engineered to provide reliable and efficient network connectivity. Operating at a wavelength of 850 nm, this module supports data transfer rates of up to 1250 Mbit/s, making it a robust solution for demanding professional networking environments. It is designed to integrate seamlessly into existing infrastructure, offering a dependable alternative for maintaining or upgrading fiber optic systems while adhering to strict industry standards.
Advantages
This transceiver module stands out for its high-quality construction and strict adherence to Multi-Source Agreement (MSA) standards, ensuring broad compatibility with various networking equipment. By utilizing premium components, the module provides consistent performance and stable data transmission, which is critical for maintaining uptime in enterprise-grade networks. Its RoHS compliance reflects a commitment to environmental safety, while its design ensures it functions effectively within the specified voltage requirements of 3.3 V.
Suitable for
High-speed data transmission in enterprise local area networks
Upgrading existing fiber optic infrastructure
Connecting network switches and routers in professional environments
Short-range fiber optic communication links
When it may not be suitable
This module is specifically designed for multi-mode fiber applications and will not function correctly in single-mode fiber environments. Furthermore, it is not intended for long-distance transmission beyond the capabilities of 850 nm multi-mode optics.
Key specifications
Data transfer rate: 1250 Mbit/s
Wavelength: 850 nm
Interface: SFP
Voltage: 3.3 V
Compliance: RoHS, MSA
Dimensions: 45 mm x 20 mm x 115 mm
How to use
To install the module, ensure that your networking device is powered on or off according to the manufacturer's guidelines. Insert the SFP module into the designated SFP port on your switch or router until it clicks into place. Once installed, connect the appropriate multi-mode fiber optic cable to the transceiver. The device should automatically detect the module, though some network hardware may require a manual configuration or a software update to recognize third-party compatible transceivers.
What to consider before purchase
Verify that your networking equipment supports SFP modules
Ensure the fiber optic cabling in your infrastructure is multi-mode
Check if your switch requires specific OEM-coded transceivers for full interoperability
Usage recommendations
Always handle the fiber optic transceiver with care to avoid damaging the optical interface. Ensure that the fiber connectors are clean and free of dust before insertion to maintain optimal signal integrity.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Duplex system | Full |
| Ethernet LAN | No |
| Wavelength | 850 nm |
| Fiber optic connector | LC |
| Maximum transfer distance | 550 m |
| Tx power (max) | -3.5 dBmW |
| Tx power (min) | -9.5 dBmW |
| Wavelength-division multiplexing (WDM) | Yes |
| Multi-mode fiber (MMF) supported | Yes |
| SFP transceiver standard | SX |

### Network

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

### Logistics data

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

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 70 |

### Other features

| Feature | Value |
|---|---|
| RX sensitivity | -20 dB |

### Packaging content

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.031 kg |
| Height | 115 mm |
| Width | 45 mm |
| Depth | 20 mm |

### Power

| Feature | Value |
|---|---|
| Maximum voltage | 3.3 V |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Features

| Feature | Value |
|---|---|
| Product colour | Stainless steel |

## FAQ

### How much does the ProLabs GLC-SX-MMD-C SFP Transceiver Module cost, and is it available for purchase?

The price is 21.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 Sonstige 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 Sonstige 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, weight, product colour, 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/12471574/68794883_large.webp