SKU: 30925686335

SIIG Dual 2.5G 4-Speed Multi Gigabit Ethernet PCIe Card

Sale price$118.43 Regular price$131.59
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

SIIG Dual 2.5G 4-Speed Multi Gigabit Ethernet PCIe CardUpgrade your server or desktop with high speed multigigabit networking using the SIIG Dual 2. 5G 4Speed Multi Gigabit Ethernet PCIe Card. This compact yet powerful addin card delivers two independent 2. 5GBASET Ethernet ports, giving you the bandwidth needed for fast file transfers, smooth virtualization, highdefinition media streaming, and resilient data backups. Designed for easy integration into a wide range of systems, this PCIe card uses a

Upgrade your server or desktop with high-speed multi‑gigabit networking using the SIIG Dual 2.5G 4‑Speed Multi Gigabit Ethernet PCIe Card. This compact yet powerful add‑in card delivers two independent 2.5GBASE‑T Ethernet ports, giving you the bandwidth needed for fast file transfers, smooth virtualization, high‑definition media streaming, and resilient data backups. Designed for easy integration into a wide range of systems, this PCIe card uses a standard x4 interface to unlock better performance without sacrificing compatibility. Whether you’re building a home lab, upgrading a small business server, or equipping a workstation for demanding network workloads, SIIG’s dual‑port Ethernet solution combines reliability, versatility, and value in a single PCIe card.

  • Two 2.5GBASE‑T Ethernet ports on a single PCIe card provide scalable, multi‑gigabit connectivity for simultaneous data streams, faster local transfers, and improved network responsiveness.
  • Per‑port speed support across four speeds—2.5 Gbps, 1 Gbps, 100 Mbps, and 10 Mbps—via automatic negotiation to maximize compatibility with diverse devices and networks.
  • Easy integration through a PCI Express x4 slot, offering ample bandwidth for dual ports while maintaining compatibility with most modern desktops and servers.
  • Dual‑port design supports flexible networking configurations, including separate networks for workstations and storage devices, enhanced traffic management, and improved data flow in virtualization environments.
  • Solid compatibility and ongoing driver support from SIIG, ensuring broad OS coverage and reliable performance across a variety of system configurations.

Technical Details of SIIG Dual 2.5G 4-Speed Multi Gigabit Ethernet PCIe Card

  • Interface: PCI Express x4
  • Ports: 2 × RJ45 Ethernet ports
  • Supported speeds per port: 2.5GBASE‑T, 1G, 100Mbps, 10Mbps (auto‑negotiation)
  • Network standard support: 2.5G/1G/100M Ethernet with automatic speed selection
  • Product type: Dual multi‑gigabit Ethernet PCIe network adapter
  • Form factor: PCIe add‑in card compatible with standard desktop and server motherboards

how to install SIIG Dual 2.5G 4-Speed Multi Gigabit Ethernet PCIe Card

  • Power down your computer or server and unplug all cables to ensure safety during installation.
  • Open the computer case and locate an available PCIe x4 slot on the motherboard. If your system uses a different form factor, check compatibility with your chassis and motherboard specifications.
  • Remove the corresponding expansion slot cover on the chassis and firmly insert the SIIG PCIe card into the x4 slot, ensuring it is seated evenly and fully engaged.
  • Secure the card to the chassis with the screw from the slot cover to prevent movement during operation.
  • Reconnect power and boot the system. The operating system should detect the new hardware. Install the latest drivers and software from SIIG if prompted or if you require enhanced management features and performance tuning.

Frequently asked questions

  • Q: What speeds does this card support?

    A: Each of the two RJ45 ports supports multi‑gigabit operation, including 2.5GBASE‑T, and can auto‑negotiate down to 1G, 100Mbps, or 10Mbps depending on the connected network equipment.

  • Q: How many ports are on the card?

    A: The card provides two independent Ethernet ports, enabling dual‑port networking from a single PCIe card.

  • Q: What PCIe slot does it require?

    A: The adapter plugs into a PCI Express x4 slot, making it compatible with a wide range of desktops and servers that offer PCIe expansion capabilities.

  • Q: Do I need special drivers?

    A: Driver requirements vary by operating system. SIIG provides drivers and software to optimize performance and compatibility for supported Windows and Linux environments. Check the vendor’s site for the latest versions and OS support details.

  • Q: Can I use both ports at the same time for different networks?

    A: Yes. Each port operates independently, so you can connect to separate networks or VLANs on each port for traffic separation, improved security, and streamlined management.

  • Q: Is this card suitable for a home lab or virtualization setup?

    A: Absolutely. The dual 2.5G ports are ideal for lab environments, virtual machines, storage backups, and high‑throughput workloads where faster than 1 Gbps networking is beneficial.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30925686335

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Ron Sieloff
Chelsea, US
★★★★★ 5
Quality product
Color: Green & Yellow & Blue
Durable. Tested negative for lead.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
K
K. Mair
Bozeman, US
★★★★★ 3
Fun but easy to destroy
Color: Green & Yellow & Blue
We foster puppies and go through a ton of toys. These soft, latex toys are great for non-super chewers, whether puppies or small to medium dogs. Our 20-week-old foster puppy has had a great time with hers, which still squeaks. She is fairly gentle and enjoys squeaking her toys, but is not destructive. If you have super chewers, these will not last for even a minute. One of our dogs got a hold of one toy after a few days and demolished it in literally 6 seconds. The price is quite high for toys if in this style, as you get three of them for $16, and typically you can get similar toys for a much lower price, but they do have a great squeak and the long necks have really pleased the puppy. I think that for the right dog, these would be great, and I would recommend them, but avoid them if your dog likes to destroy their toys because they are terribly easy to rip apart.
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Reviewed in the United States on December 7, 2025
L
Verified Purchase
Linda Ramos
Birmingham, US
★★★★★ 5
Fun new toys
Color: Yellow & Grey & Brown
My dog loves him. They’re easy to squeak and carry in his mouth so it’s a bonus bonus for him. He’s a puppy so he’s not the most coordinated thing yet.
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Reviewed in the United States on December 30, 2025
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Shelly N.
Alexandria, US
★★★★★ 2
Not for dogs who chew
Color: Green & Yellow & Blue
My dog loved them, but they were destroyed in 2 days.
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Reviewed in the United States on January 31, 2026
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N Epp
Grantham, US
★★★★★ 5
A new favorite toy
Color: Yellow & Grey & Brown
My dog loves these!
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Reviewed in the United States on January 5, 2026

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