This article covers Buacoz デュアルポートサーバーネットワークカード Intel I226-V チップ PCI-E X1 2.5G ギガビットイーサネットカード RJ45 LAN ネットワークアダプター Windows.

Overview

The Buacoz Dual Port Server Network Card is a PCI Express x1 2.5Gbps Ethernet adapter built around the Intel I226-V controller. It offers a straightforward way to add dual 2.5 Gigabit LAN ports to any desktop PC or server, making it an ideal upgrade path from standard Gigabit Ethernet. This card stands out for using an original Intel I226-V chip, which supports 10M/100M/1000M/2.5Gbps speeds with auto-negotiation in both full-duplex and half-duplex modes. Hardware offload acceleration reduces CPU overhead, ensuring stable and efficient network performance even under load.

Connectivity & Compatibility

Interface: PCI Express x1 (PCIe 3.1 compliant, 5 GT/s). Physically compatible with x4, x8, and x16 slots. Ports: Dual RJ-45 ports, each supporting 10 Mbps to 2.5 Gbps auto-negotiation. Cable requirements: CAT5e or higher recommended for full 2.5 Gbps speed. OS support: Windows 10, Windows 11, and Windows Server 2022. Linux compatibility is not officially stated but Intel I226-V has broad Linux driver support. * Advanced features: PXE boot, VLAN tagging, flow control, link aggregation (teaming).

Product Info

The Buacoz Dual Port Server Network Card is positioned as an entry-level to mid-range 2.5GbE adapter. It offers the reliability of an Intel I226-V chipset at a competitive price point, making it accessible for home lab enthusiasts and small office users. Release period: Estimated 2024 (based on availability). Price range: Approximately ¥10,000 on . Warranty: Provided by Buacoz (check product page for details). Accessories: Network card, low-profile bracket included (standard full-height bracket pre-installed). * Availability: Primarily sold through .

Best Use Cases

NAS and file server users: Upgrading from 1 GbE to 2.5 GbE dramatically reduces transfer times for large files. The dual-port design allows for link aggregation or separate network segments, improving overall throughput in multi-user environments. Content creators and video editors: Working with 4K/8K raw footage or large project files over the network becomes significantly faster with 2.5 Gbps. This card is a cost-effective way to speed up collaborative workflows. Home lab and small server operators: With confirmed Windows Server 2022 support and features like VLAN and teaming, this card fits well into homelab setups where budget matters but reliability is still important. General users upgrading from Gigabit: If your motherboard lacks built-in 2.5 GbE, this card provides a simple drop-in solution. Pair it with a 2.5 GbE switch and compatible NAS or router to experience faster local transfers. However, this card is less suitable for: Users needing 10 GbE or faster networking. Those who rely solely on Wi-Fi. * Laptop users without an available PCIe slot (consider a USB 2.5 GbE adapter instead).

Product Disclosure (Amazon)

  • Manufacturer: Buacoz
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0DNJW6R5K
  • Note: This article covers a manufacturer-made product based on Amazon listing details.