This article covers X-MEDIA XM-NA3820 PCI-E 2ポート デュアル 10.

Overview

The X-MEDIA XM-NA3820 is a dual-port Gigabit Ethernet adapter that fits into a PCI Express x1 slot. It combines a Realtek RTL8111F controller with an ASM1182e bridge chip to deliver two independent 10/100/1000 Mbps ports. Compliant with IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.1q, and 802.1p standards, this card supports auto-negotiation on each port. Both a full-height bracket and a low-profile bracket are included, making it suitable for standard desktop towers as well as compact SFF cases.

Connectivity & Compatibility

Interface: PCI Express x1 (compatible with PCIe 2.0 and later). Connectors: 2 x RJ-45, each supporting 10BASE-T, 100BASE-TX, and 1000BASE-T. OS support: Windows 2000/XP/Vista/7/8/8.1/10 (32/64-bit), Windows Server 2003/2008/2012/2016/2019, and Linux. Included brackets: one standard (full-height) and one low-profile bracket for flexible chassis fit. * Status LEDs: ACT/Link indicators per port for quick visual monitoring.

Product Info

The XM-NA3820 is positioned as an entry-level to mid-range network card. Its dual-port design at a modest price point makes it an attractive option for home servers, NAS builds, or router-on-a-stick configurations. Package contents include the network card, a full-height bracket, and a low-profile bracket. Warranty coverage varies by retailer; the card is widely available on and other major e-commerce platforms, typically priced around ¥6,000–¥7,000.

Best Use Cases

Home server builders: Adding two Gigabit ports to a desktop PC lets you separate WAN and LAN traffic for a DIY router or file server. The Realtek chipset has solid Linux driver support, making it a good fit for pfSense, OPNsense, or Ubuntu Server. Users with a failed onboard LAN port: If your motherboard's Ethernet port stops working, this card provides a quick and inexpensive replacement. As long as a free PCIe x1 slot is available, you can restore wired networking in minutes. Virtualization enthusiasts: With two physical ports, you can assign separate network segments to different VMs or containers in hypervisors like Proxmox VE or VMware ESXi. Not recommended for: Anyone requiring 10 GbE or higher throughput, or competitive gamers who need the lowest possible latency. In those cases, a 2.5 GbE/10 GbE card or an Intel-based adapter would be a better investment.

Product Disclosure (Amazon)

  • Manufacturer: X-MEDIA
  • Seller: Amazon US
  • Fulfilled by: Amazon US
  • ASIN: B07P9KKHK4
  • Note: This article covers a manufacturer-made product based on Amazon listing details.