This article covers Intel X550-T2 イーサネットアダプタ 10Gbps 内蔵型.
Overview
The Intel X550-T2 is an internal network card that brings two 10-gigabit Ethernet ports to desktop PCs and workstations. Designed for users who demand stable bandwidth and low latency, this adapter leverages the Intel X550 controller chip to deliver full 10Gbps throughput on both ports simultaneously. With support for the 10GBASE-T standard, the X550-T2 allows you to use existing Cat6a cabling without needing to switch to fiber or SFP+. This makes it a practical upgrade path for anyone looking to break free from the 1Gbps bottleneck without overhauling their entire network infrastructure.
Connectivity & Compatibility
Interface: PCI Express 3.0 x4 (compatible with x8 and x16 slots). OS support: Windows Server, Linux, VMware ESXi, and other major server-oriented operating systems. Cable requirement: Category 6a or higher recommended for full 10Gbps operation. Form factor: Standard and low-profile brackets included, fitting most desktop and tower cases. * Note: The card is designed for desktop PCs only; it will not fit laptops or systems without an available PCIe slot.
Product Info
Released around 2016, the Intel X550-T2 has become a staple in the prosumer and small-business networking space. It sits in the mid-to-high tier of internal 10GbE adapters, typically priced between ¥26,000 and ¥35,000. Warranty: 3 years from Intel (when purchased as an Intel-branded retail unit). Accessories: Standard bracket, low-profile bracket, and quick-start guide. * Availability: Widely available on Japan and major PC component retailers.
Best Use Cases
NAS power users: If you run a QNAP or Synology NAS and need to serve large files to multiple clients simultaneously, the dual 10GbE ports let you segregate backup traffic from regular access, maximizing throughput. Video editors and creative professionals: Editing 4K or 8K footage directly from network storage becomes feasible with 10Gbps. The X550-T2 eliminates the transfer bottleneck that plagues 1GbE setups. * Virtualization enthusiasts: Running VMware ESXi or Hyper-V? Two physical ports allow you to dedicate one for management and the other for data traffic, improving security and performance. Conversely, this card is overkill for basic web browsing or office productivity. It also requires a free PCIe x4 or larger slot, so it won't work in most laptops or compact desktops.
Things to Consider
The X550-T2 uses PCIe 3.0 x4; installing it in an x1 slot will severely limit performance. Verify your motherboard has a suitable slot before purchasing. 10GBASE-T controllers generate significant heat. Ensure your case has adequate airflow, especially during summer months, to avoid thermal throttling. While OS support is broad, Windows 11 may not automatically detect the card. Download the latest drivers from Intel's website ahead of time. Alternatives include the ASUS XG-C100C (single-port, lower cost) and Mellanox ConnectX-3 (SFP+, often cheaper if you already have SFP+ switches). Choose based on your existing network hardware.
Product Disclosure (Amazon)
- Manufacturer: インテル
- Seller: Reg shop
- Fulfilled by: Reg shop
- ASIN: B01EJ4B394
- Note: This article covers a manufacturer-made product based on Amazon listing details.





