3CSFP91ST StarTech.com Gigabit Fiber 1000Base-SX SFP Transceiver Module - HP 3CSFP91 Compatible - MM LC - 550m~HPE 3CSFP91 Compatible SFP Module - 1000BASE-SX - 1GbE Multi Mode Fiber Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - DDM HPE
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Warranty: 90-day return/replacement
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- Authenticity: Original Genuine OEM
Gigabit Fiber 1000Base-SX SFP Transceiver Module - HP 3CSFP91 Compatible - MM LC - 550m~HPE 3CSFP91 Compatible SFP Module - 1000BASE-SX - 1GbE Multi Mode Fiber Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - DDM HPE 3812, 3824, 3848
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3CSFP91ST Overview
STARTECH 3csfp91 Hpe Mm Lc Sfp Module 1g Fiber Sfp Transceiver
StarTech.com HPE 3CSFP91 Compatible SFP Module - 1000BASE-SX - 1GbE Multi Mode (MMF) Fiber Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - DDM HPE 3812, 3824, 3848 (3CSFP91ST)
- 100% HPE 3CSFP91 COMPATIBLE: Works with HPE switches like 3812, 3824, 3848, 4070, and others
- TECHNICAL SPECS: 1000BASE-SX / 1Gbps / Multi Mode (MMF) / LC Connector / 850nm / Digital Diagnostic Monitoring (DDM) / Distances up to 550m (1804ft)
- TESTED FOR OEM HOST COMPATIBILITY: Hot-swappable in HPE routers and switches; DDM support reports the transceiver's status to most SNMP network management tools
- WORKS WITH MSA COMPLIANT SWITCHES: Also works with switch models from Ubiquiti, D-Link, Netgear, Supermicro, TP-Link and more that accept uncoded modules
- THE IT PRO’S CHOICE: Designed and built for IT Professionals, this SFP module is backed for life (lifetime of module, not network switch), including free lifetime 24/5 multi-lingual technical assistance
- SFP Fiber optic 1250 Mbit/s
- Wavelength: 850 nm
- Hot-swap
- Power consumption (typical): 1 W
Summary Description
StarTech.com Gigabit Fiber 1000Base-SX SFP Transceiver Module - HP 3CSFP91 Compatible - MM LC - 550m~HPE 3CSFP91 Compatible SFP Module - 1000BASE-SX - 1GbE Multi Mode Fiber Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 550m - 850nm - DDM HPE 3812, 3824, 3848. SFP transceiver type: Fiber optic, Maximum data transfer rate: 1250 Mbit/s, Interface type: SFP. Product colour: Silver, Housing material: Aluminium, Mean time between failures (MTBF): 3381761 h. Power consumption (typical): 1 W. Width: 13.7 mm, Depth: 56.6 mm, Height: 12.5 mm. Number of products included: 1 pc(s), Package width: 93 mm, Package depth: 102 mm
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Specifications
Overview
| Condition | New |
|---|---|
| Brand | StarTech.com |
| Stock | In Stock |
Performance
| SFP transceiver type | Fiber optic |
|---|---|
| Maximum data transfer rate | 1250 Mbit/s |
| Interface type | SFP |
| Multi-mode fiber (MMF) supported | Y |
| Fiber optic connector | LC |
| SFP transceiver standard | SX |
| Maximum transfer distance | 550 m |
| Wavelength | 850 nm |
| Networking standards | IEEE 802.3z |
| Duplex system | Full |
| Digital Diagnostics Monitoring (DDM) | Y |
Features
| Product colour | Silver |
|---|---|
| Housing material | Aluminium |
| Hot-swap | Y |
| Mean time between failures (MTBF) | 3381761 h |
| Country of origin | China |
Power
| Power consumption (typical) | 1 W |
|---|
Operational conditions
| Operating temperature (T-T) | 0 - 70 °C |
|---|---|
| Storage temperature (T-T) | -40 - 85 °C |
| Operating relative humidity (H-H) | 5 - 95% |
Weight & dimensions
| Width | 13.7 mm |
|---|---|
| Depth | 56.6 mm |
| Height | 12.5 mm |
| Weight | 17 g |
Packaging data
| Number of products included | 1 pc(s) |
|---|---|
| Package width | 93 mm |
| Package depth | 102 mm |
| Package height | 32 mm |
| Package weight | 44 g |
Technical details
| Sustainability certificates | CE, RoHS |
|---|
Logistics data
| Master (outer) case width | 252 mm |
|---|---|
| Master (outer) case length | 307 mm |
| Harmonized System (HS) code | 85369010 |
| Master (outer) case height | 214 mm |
| Products per master (outer) case | 36 pc(s) |
Resources
Documents
Frequently Asked Questions
Is the 3CSFP91ST compatible with my existing HPE ProCurve switches? +
Yes, the 3CSFP91ST is specifically engineered to be a reliable, drop-in replacement for the HPE 3CSFP91 transceiver. It is designed to meet or exceed original equipment manufacturer specifications, ensuring full compatibility with HPE networking hardware such as the 3812, 3824, and 3848 series switches, providing a cost-effective alternative for your fiber optic network connectivity.
What is the maximum effective reach for this 1000Base-SX module? +
This SFP transceiver is optimized for short-to-medium-range fiber connectivity. When utilizing standard 50/125 micron multi-mode fiber cabling, you can achieve a maximum distance of up to 550 meters. It operates at an 850nm wavelength, making it an ideal choice for high-speed Gigabit Ethernet connections within a single building, data center, or campus environment.
Does this transceiver support Digital Diagnostics Monitoring (DDM)? +
Absolutely. The 3CSFP91ST includes integrated Digital Diagnostics Monitoring, often referred to as DOM or DDM. This feature allows network administrators to monitor real-time operating parameters of the transceiver, such as optical input/output power, temperature, and laser bias current, which is critical for proactive troubleshooting and maintaining optimal network uptime.
What type of cabling do I need to connect this SFP module? +
This module is a 1000Base-SX transceiver, meaning it is intended for use with multi-mode fiber optic cabling terminated with LC duplex connectors. Ensure that your fiber patch cables match the 50/125 or 62.5/125 micron core specifications required for your specific installation to guarantee maximum signal integrity and throughput over the 550-meter distance.
Can I mix this StarTech.com module with original HPE transceivers in the same switch? +
Yes, the 3CSFP91ST is designed to coexist seamlessly with original HPE branded transceivers within the same chassis or stack. Because it follows industry-standard MSA (Multi-Source Agreement) protocols while adhering to HPE-specific coding, your switch will recognize and manage the module just as it would an OEM unit, allowing for flexible, multi-vendor fiber deployments.
Is this SFP module hot-swappable? +
The 3CSFP91ST is a fully hot-swappable module. This means you can install or remove the transceiver from an SFP port on your powered-on networking device without needing to shut down or reboot the switch. This capability is essential for performing upgrades or maintenance tasks while keeping your production network infrastructure online and minimizing downtime.
What performance speeds does the 3CSFP91ST provide? +
This transceiver is built to deliver a consistent 1.25 Gbps data rate, adhering to the 1000BASE-SX Gigabit Ethernet standard. It provides full-duplex performance, ensuring high-speed data transmission between switches, routers, or servers. By utilizing the 850nm VCSEL laser technology, it maintains low latency and high reliability, perfect for bandwidth-intensive enterprise applications and backbone connectivity.
Are there any specific configuration requirements for using this SFP in my switch? +
In most cases, this module is truly plug-and-play. Once inserted into an available SFP slot, the switch will automatically detect the transceiver and initialize the link. While no complex configuration is typically required, you should always ensure your switch firmware is updated and the corresponding port is enabled in your software management interface to establish a successful handshake.
Why should I purchase my network hardware from BuyRouterSwitch.com? +
BuyRouterSwitch.com specializes in providing high-quality, authentic networking hardware for enterprise environments. We focus on streamlining the procurement process for IT professionals, ensuring you get the exact hardware you need without the unnecessary friction found in traditional supply chains. By choosing us, you benefit from our deep product knowledge and commitment to maintaining a catalog of verified, reliable networking components.
How can I request a bulk quote for a large volume of these transceivers? +
If you are planning a large-scale network deployment and require a significant quantity of 3CSFP91ST modules, we encourage you to contact our dedicated sales team directly. We can provide customized pricing and logistical support tailored to your project requirements. Simply reach out through our contact page to discuss your project scale, and we will prepare a competitive quote to meet your budget.
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