StarTech.com ST2GPEX 1 Port 2.5Gbps 2.5GBASE-T PCIe Network Card - PCIe x4 - Windows - MacOS & Linux
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Product Features
Technical Overview
This network card implements 2.5GBASE-T and NBASE-T specifications, providing 2.5Gbps network speeds over existing CAT5e cabling and CAT6a. The IEEE 802.3az and IEEE 802.3u compliant design ensures energy-efficient operation while maintaining full compatibility with standard Ethernet protocols.
The twisted pair media support enables seamless integration with existing network infrastructure. The single RJ-45 port delivers reliable connectivity with automatic speed negotiation, while the PCIe x4 interface provides sufficient bandwidth for maximum throughput without bottlenecking system performance.
Relevant factors for this section include Host Interface, Total Number of Ports, Number of Network (RJ-45) Ports, Media Type Supported. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
A strong technical summary explains how the product's interfaces, hardware profile, and operating characteristics work together in real deployment. Buyers often need this context to confirm compatibility with existing devices, expected performance in daily use, and whether installation will be straightforward for IT staff or end users.
Key Product Advantages
This network card bridges the gap between gigabit and 10-gigabit networking by delivering 2.5Gbps performance over existing cabling. The flexible installation options and broad compatibility make it an ideal solution for upgrading network infrastructure without significant reinvestment.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Multi-Speed Compatibility, Flexible Installation.
Multi-Speed Compatibility
Supports four network speeds (2.5G/1G/100Mbps/10Mbps) with automatic negotiation, ensuring compatibility with diverse network equipment and infrastructure.
- 2.5Gbps maximum throughput
- Backward compatible with gigabit networks
- Automatic speed detection
Flexible Installation
Includes both standard and low-profile brackets, enabling deployment in full-size towers, compact systems, and various form factor configurations.
- Dual bracket inclusion
- Plug-in card design
- Tool-free installation in most cases
Deployment / Use Cases
The ST2GPEX network card serves as a cost-effective upgrade for systems requiring faster network connectivity. It's particularly valuable in environments where 10-gigabit infrastructure would be cost-prohibitive, but standard gigabit speeds have become insufficient.
Common deployment scenarios include upgrading workstations for video editing, CAD work, or large file transfers; enhancing server connectivity in small to medium businesses; improving network performance for network-attached storage devices; and providing faster connectivity for gaming systems or media servers.
Relevant factors for this section include Host Interface, Total Number of Ports, Number of Network (RJ-45) Ports, Media Type Supported. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Workstation Enhancement
Ideal for creative professionals and engineers who regularly transfer large project files, stream high-resolution content, or work with network-attached resources.
Small Business Infrastructure
Provides affordable network speed upgrades for file servers, backup systems, and shared storage without requiring complete network infrastructure replacement.
Physical Profile
The compact plug-in card design measures 4.70" wide by 3.10" deep by 0.80" high (119.38 mm x 78.74 mm x 20.32 mm), fitting standard PCIe slots while maintaining a low profile for compatibility with various chassis configurations. The lightweight construction at 4.90 ounces (138.91 grams) ensures minimal impact on system weight and cooling requirements.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 0.80" (20.32 mm), 4.70" (119.38 mm), 3.10" (78.74 mm), 4.90 oz (138.91 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 4.70" (119.38 mm)
- Depth
- 3.10" (78.74 mm)
- Height
- 0.80" (20.32 mm)
- Weight
- 4.90 oz (138.91 g)
What's in the Box
The package includes all necessary components for immediate installation and operation.
Highlights
- Multi-gigabit Ethernet connectivity with 2.5G, 1G, 100Mbps, and 10Mbps speeds
- Compatible with 2.5GBASE-T and NBASE-T specifications
- Supports 2.5Gbps speeds over existing CAT5e and CAT6a cabling
- Energy-efficient Realtek RTL8125 chipset with IEEE 802.3az compliance
- Includes both standard and low-profile brackets for flexible installation
- PCIe x4 host interface for optimal bandwidth utilization
- Compatible with Windows, MacOS, and Linux operating systems
- Supports computers, servers, workstations, switches, and access points
- RoHS, REACH, and WEEE compliant for environmental responsibility
- Backed by a 2-year limited warranty
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ST2GPEX |
| Brand Name | StarTech.com |
| Product Model | ST2GPEX |
| Product Name | 2.5Gbps 2.5GBase-T PCIe Network Card |
| Packaged Quantity | 1 Each |
| Product Type | Gigabit Ethernet Card |
| Interfaces/Ports | |
| Host Interface | PCI Express x4 |
| Total Number of Ports | 1 |
| Number of Network (RJ-45) Ports | 1 |
| Media & Performance | |
| Media Type Supported | Twisted Pair |
| Network & Communication | |
| Network Technology | 2.5GBase-T,1000Base-T,10/100Base-TX |
| Physical Characteristics | |
| Form Factor | Plug-in Card |
| Height | 0.80" (20.32 mm) |
| Width | 4.70" (119.38 mm) |
| Depth | 3.10" (78.74 mm) |
| Weight (Approximate) | 4.90 oz (138.91 g) |
| Miscellaneous | |
| Package Contents | 2.5Gbps 2.5GBASE-T PCIe Network Card 1 x Low-Profile Bracket 1 x Quick-Start Guide |
| Device Supported | Access Point,Switch,Computer,Server,Workstation |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS),Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | 2 Year |
FAQ
What network speeds does this PCIe card support?
The StarTech.com ST2GPEX supports four network speeds: 2.5Gbps, 1Gbps, 100Mbps, and 10Mbps. It automatically negotiates the highest available speed with connected network equipment, providing backward compatibility with existing gigabit infrastructure while enabling 2.5Gbps performance where supported.
What type of Ethernet cabling is required for 2.5Gbps speeds?
This network card supports 2.5Gbps speeds over standard CAT5e cabling up to 100 meters and CAT6a cabling. You don't need specialized cabling to achieve the maximum 2.5Gbps throughput, making it an economical upgrade for existing network installations without requiring cable replacement.
Which operating systems are compatible with this network card?
The card is compatible with Windows, MacOS, and Linux operating systems. Driver support is available for current versions of these platforms, ensuring broad compatibility across different computing environments from desktop workstations to servers and network appliances.
What does the package include for installation?
The package includes the 2.5Gbps 2.5GBASE-T PCIe Network Card, one low-profile bracket for compact system installation, and a quick-start guide. The dual bracket design allows installation in both standard full-height cases and compact low-profile systems without requiring additional purchases.
What types of devices can this network card be installed in?
This PCIe network card can be installed in computers, servers, workstations, switches, and access points that have an available PCIe x4, x8, or x16 slot. The plug-in card form factor makes it suitable for both tower and rackmount systems, while the included low-profile bracket extends compatibility to compact form factor cases.
What is the warranty coverage for this product?
StarTech.com provides a 2-year limited warranty for this network card. The warranty covers defects in materials and workmanship under normal use, with support available through StarTech.com's customer service channels. The product also complies with RoHS, REACH, and WEEE environmental standards.
| Qty | Price | Available |
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