# SFP Fiber Transceiver StarTech GLC-SX-MMD Compatible — 1000BASE-SX, 1GbE, MMF, LC, 850nm, 550m, DDM

**URL:** https://aio.lv/en/product--startech-glcsxmmdst--431393
**Data updated:** 2026-03-11 11:40 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** StarTech
**Manufacturer code:** GLCSXMMDST
**EAN:** 0065030868587
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 25.49 €
**Prices and availability valid until:** 2026-07-04 23:59
**Price without VAT (21%):** 21.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-glcsxmmdst--431393

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 18.06.2026 | free |
| Pickup points | 25.06.2026 | 1.99 EUR |
| Courier delivery to door | 25.06.2026 | 4.99 EUR |

## Summary description

Compatible SFP fiber transceiver module for 1 Gigabit Ethernet, supporting 1000BASE-SX multimode fiber links. Operates at 850 nm with an LC connector and up to 550 m reach (MMF). SFP interface, 1250 Mbit/s line rate, DDM support, aluminium housing in silver, typical power 1 W and MTBF ~3,381,761 h. Suited for switches and routers requiring Cisco-compatible SFPs.

## Long description

The StarTech GLC-SX-MMD Compatible SFP Fiber Transceiver is a hot-swappable 1GbE module designed for multimode fiber links using an LC connector. Operating at an 850 nm wavelength, this 1000BASE-SX compliant transceiver supports a maximum reach of up to 550 m over multimode fiber and provides a 1250 Mbit/s line rate with low typical power consumption. The compact silver aluminium housing and standard SFP interface make it suitable for installation in a wide range of switches and routers that accept Cisco-compatible SFP modules.
Advantages
This transceiver offers reliable Gigabit Ethernet connectivity over multimode fiber with a tested compatibility profile for equipment that requires Cisco GLC-SX-MMD compatible modules. The module is hot-swappable to allow non-disruptive installation or replacement. Its low power draw (typical ~1 W) and high MTBF provide energy-efficient operation and long service life. The standard LC connector and 850 nm wavelength align with common data center and enterprise fiber infrastructure.
Suitable for
 1 Gigabit Ethernet links over multimode fiber in data centers and wiring closets
 Upgrading or replacing Cisco-compatible SFP ports on switches and routers
 Short- to medium-range fiber connections up to 550 m
 Environments where hot-swappable transceivers reduce maintenance windows
Key specifications
 Interface type: SFP
 Maximum data transfer rate: 1250 Mbit/s (line rate)
 Optical type: Multimode fiber (MMF)
 Wavelength: 850 nm
 Connector: LC
 Maximum reach: 550 m (multimode fiber)
 Typical power consumption: \< 1 W
 Housing: Aluminium, silver
 Weight: 0.018 kg
 MTBF: ~3,381,761 hours
How to use
Insert the SFP transceiver into a compatible SFP slot on a switch or router until it latches. Connect multimode fiber to the LC port using appropriate LC patch cables, ensuring correct polarity. Because the module is hot-swappable, it can be installed or removed while the host device is powered on; follow your equipment vendor’s procedures for transceiver handling to avoid damage from electrostatic discharge. Verify link status and transmission settings on the host device after installation.
Usage recommendations
Use OM2/OM3/OM4 multimode fiber rated for the intended link length and maintain clean connector end-faces to ensure optimal signal integrity. Confirm device compatibility when deploying in equipment that enforces vendor locking. For best results, monitor link performance via the host device and replace the transceiver if sustained errors or link instability occur.

## Specifications

### Performance

| Feature | Value |
|---|---|
| Interface type | SFP |
| Maximum data transfer rate | 1250 Mbit/s |
| Networking standards | IEEE 802.3z |
| Duplex system | Full |
| Wavelength | 850 nm |
| Fiber optic connector | LC |
| Maximum transfer distance | 550 m |
| Digital Diagnostics Monitoring (DDM) | Yes |
| Multi-mode fiber (MMF) supported | Yes |
| SFP transceiver standard | SX |

### Network

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

### Features

| Feature | Value |
|---|---|
| Mean time between failures (MTBF) | 3381761 h |
| Product colour | Silver |
| Housing material | Aluminium |
| Hot-swap | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 340 mm |
| Master (outer) case width | 350 mm |
| Master (outer) case length | 408 mm |
| Products per master (outer) case | 100 pc(s) |
| Harmonized System (HS) code | 85369010 |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 95 |
| Storage temperature (T-T) | -40 - 85 |
| Operating temperature (T-T) | 0 - 70 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 46 g |
| Package depth | 92 mm |
| Package height | 32 mm |
| Package width | 119 mm |
| Number of products included | 1 pc(s) |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 1 W |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.018 kg |
| Height | 12.5 mm |
| Width | 13.7 mm |
| Depth | 56.6 mm |

### Sustainability

| Feature | Value |
|---|---|
| Sustainability certificates | CE, RoHS |

## FAQ

### How much does the StarTech GLC-SX-MMD Compatible SFP 1000BASE-SX cost, and is it available for purchase?

The price is 25.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 18.06.2026 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 StarTech 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 StarTech 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.

### Where can I download the instructions for StarTech GLC-SX-MMD Compatible SFP 1000BASE-SX?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/431393/54584858_large.webp