This article covers PCI-E ネットワークアダプター 2.5G ギガビット クワッド RJ45 ポート NIC (Intel I226 チップセット) 2500Mbps 4ポート イーサネット WiFiカード 薄型ブラケット付き Windows 11.

Overview

The DERAPID PCI-E 2.5G Gigabit Quad RJ45 Port NIC equips an Intel I226 chipset and delivers four independent 2.5GbE ports through a single PCI Express card. It is designed for desktop users who need to add multiple high-speed wired connections without occupying multiple expansion slots or external switches. Whether you are running a home NAS, a small server, or a multi-PC workstation, this card provides a clean and cost-effective way to scale your network. Each port supports full 2500Mbps transfer rate and auto-negotiates down to 1000Mbps and 100Mbps. The included low-profile bracket makes it compatible with compact chassis and rack-mount servers, expanding its versatility beyond standard ATX builds.

Connectivity & Compatibility

The card employs a PCI Express interface compatible with x16, x8, and x4 slots, so it works in virtually any motherboard with a free PCIe slot. OS support is remarkably broad: Windows 7, 8, 10, 11, Vista, XP, and Windows Server 2008/2012/2016/2019 are all officially supported. Network connectivity uses standard RJ45 ports. To achieve full 2.5Gbps speed, Category 5e or better cabling is required. The card handles auto-MDI/MDIX, so crossover cables are unnecessary. The Intel I226 chipset ensures reliable, low-latency operation and excellent driver support.

Product Info

The DERAPID quad-port NIC is primarily sold through at around ¥12,000–¥13,000. Warranty is covered by the manufacturer (DERAPID) through the channel. Package contents include the NIC, standard bracket, low-profile bracket, and a quick-start guide. Market positioning: This is an entry-to-mid-tier multi-port 2.5GbE adapter. Its key advantage is combining four Intel I226-based ports at a price that undercuts most competitors while maintaining solid build quality and wide compatibility.

Best Use Cases

NAS/Server owners needing direct multi-client connections: With four ports, you can connect multiple PCs directly without a switch, reducing latency and cost. Ideal for home labs or small offices where you want dedicated links to each client. However, note that the card does not function as a switch — each port is independent. Virtualization and homelab enthusiasts: Assign each port to a different VM or network segment (management, storage, WAN). This frees up PCIe slots and simplifies cable management. The low-profile bracket helps when fitting into dense server cases. * Gradual 2.5GbE upgrade path: If your infrastructure is still 1GbE but you plan to migrate, add this card to key machines first. You can connect them to a 2.5GbE switch later, or simply run them at 1GbE until ready to upgrade. Cost per port is very attractive compared to 5GbE or 10GbE alternatives. One limitation: if your motherboard has only a PCIe 3.0 x1 slot available, the total bandwidth may be insufficient for all four ports at full load. Check your slot’s lane configuration before purchase.

Product Disclosure (Amazon)

  • Manufacturer: DERAPID
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B0DMJVPCXB
  • Note: This article covers a manufacturer-made product based on Amazon listing details.