# SFP Transceiver Module StarTech 3CSFP91

**URL:** https://aio.lv/en/product--startech-3csfp91st--431367
**Data updated:** 2025-12-28 21:19 (EET)
**Category:** Network Transceiver Modules
**Manufacturer:** StarTech
**Manufacturer code:** 3CSFP91ST
**EAN:** 0065030868563
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.49 €
**Prices and availability valid until:** 2026-07-04 23:59
**Price without VAT (21%):** 30.98 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-3csfp91st--431367

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.06.2026 | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

The StarTech.com Gigabit Fiber 1000Base-SX SFP Transceiver Module is compatible with HP 3CSFP91. It supports a maximum data transfer rate of 1250 Mbit/s over multi-mode fiber with a range of up to 550m. This module features a compact design with an aluminum housing, ensuring durability and reliability. With a low power consumption of 1 W and a high MTBF of 3,381,761 hours, it is ideal for long-term use in networking applications.

## Long description

The StarTech 3CSFP91ST is a Gigabit SFP fiber transceiver module compatible with HPE 3CSFP91. It provides 1 GbE connectivity (1000BASE-SX) over multi-mode fiber with LC connectors and supports link distances up to 550 m (1804 ft). The module features low power consumption (under 1 W), an aluminum housing, and a high MTBF, making it suitable for reliable network installations. Digital Diagnostics Monitoring (DDM) is supported and the module is hot-swappable to minimize network downtime.
Advantages
The transceiver offers dependable 1 GbE performance over multi-mode fiber with up to 550 m reach, low power usage, and DDM support for real-time diagnostics. Its hot-swappable SFP form factor simplifies upgrades and replacements, and the compact aluminum housing contributes to durability. The product is backed by StarTech.com’s lifetime warranty and lifetime multilingual technical support.
Suitable for
 Connecting switches and routers over multi-mode fiber in LAN environments
 Upgrading or replacing SFP ports in HPE-compatible equipment
 Data center interconnects and campus backbone links within 550 m
Key specifications
 Standard: 1000BASE-SX (1 GbE)
 Maximum data transfer rate: 1.25 Gbps (1250 Mbit/s)
 Fiber type: Multi-mode fiber (MMF)
 Wavelength: 850 nm
 Connector: LC
 Maximum distance: 550 m (1804 ft)
 Power consumption: \< 1 W
 MTBF: 3,381,761 hours
 Interface type: SFP
 Product colour: Silver
How to use
Ensure the host device (switch or router) supports SFP modules and is HPE-compatible if required. With the device powered on or per vendor guidance, insert the SFP transceiver into an empty SFP port until it clicks into place. Connect multi-mode fiber with LC connectors and verify link lights and DDM readings via the host management interface. To remove, depress the latch and pull the module straight out. Follow standard ESD precautions when handling the module and fiber connectors.
Usage recommendations
Use OM1/OM2/OM3/OM4 multi-mode fiber appropriate for the required link budget and keep fiber ends clean to ensure optimal performance. Verify compatibility lists for HPE devices if strict vendor validation is required, and keep a spare hot-swappable module on hand to reduce downtime during maintenance.

## 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 |

### Operational conditions

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

### Logistics data

| Feature | Value |
|---|---|
| Country of origin | China |
| Master (outer) case height | 214 mm |
| Master (outer) case width | 252 mm |
| Master (outer) case length | 307 mm |
| Products per master (outer) case | 36 pc(s) |
| Harmonized System (HS) code | 85369010 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 44 g |
| Package depth | 102 mm |
| Package height | 32 mm |
| Package width | 93 mm |
| Number of products included | 1 pc(s) |

### Power

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.017 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 SFP Transceiver Module StarTech 3CSFP91 cost, and is it available for purchase?

The price is 37.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 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 19.06.2026 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: Cash payment, 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 SFP Transceiver Module StarTech 3CSFP91?

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/431367/54584569_large.webp