10Gb PCIe NIC, Intel 82599EN, SFP+ Port, X520-DA1 Compatible, PCIe X4/X8, Low Profile, Supports Windows Server/Linux/VMware ESXi/Proxmox/TrueNAS

• BLAZING 10Gbps THROUGHPUT — INTEL 82599EN, SAME CHIP AS X520-DA1 — Powered by the battle-tested Intel 82599EN controller, the identical silicon used in the enterprise-grade Intel X520-DA1, this PCIe NIC delivers true, sustained 10 Gigabit throughput for NAS file transfers, VM live migration, iSCSI storage, and high-bandwidth server workloads. A proven chipset trusted in data centers worldwide, now at a fraction of the cost.
• PLUG-AND-PLAY ON PROXMOX, TRUENAS, ESXI & MAJOR LINUX DISTROS — Natively recognized on Proxmox VE, TrueNAS Scale/CORE, VMware ESXi, Ubuntu, Debian, and CentOS with zero driver installation required. Windows Server 2016/2019/2022 and Windows 10/11 users can install via the standard Intel X520 unified driver package in minutes. Confirmed working with QNAP QuTS Hero and Synology DSM out of the box.
• FLEXIBLE SFP+ PORT — DAC, AOC & FIBER MODULES ALL SUPPORTED — The single SFP+ port accepts Direct Attach Copper (DAC) cables, Active Optical Cables (AOC), 10GBase-SR multimode, and 10GBase-LR single-mode fiber transceivers. Connects directly to Ubiquiti UniFi Dream Machine Pro, Mikrotik CRS series, Cisco, Netgear, and any SFP+-equipped switch without additional adapters or converters.
• UNIVERSAL PCIe FIT — X4/X8/X16 SLOTS, ONLY 4 LANES REQUIRED — Installs into any PCIe x4, x8, or x16 slot while consuming only 4 PCIe lanes, minimizing motherboard resource usage. Both full-height and low-profile brackets are included in the box, making this card compatible with standard ATX towers, 1U/2U rackmount servers, and compact Mini-ITX or mATX cases with limited internal clearance.
• ENTERPRISE RELIABILITY AT HOMELAB PRICING — FULL AFTER-SALES SUPPORT — Supports IEEE 802.3ae 10GbE standard, hardware TCP/UDP checksum offload, and jumbo frames up to 9KB for maximum throughput efficiency. Package includes the NIC card, full-height bracket, low-profile bracket, and driver CD. Backed by dedicated customer support and Amazon's 30-day hassle-free return policy.

Upgrade your network backbone with the 10GbE SFP+ PCIe Adapter, built around the Intel 82599EN controller, the same proven silicon used in the Intel X520-DA1. Whether you are expanding a homelab, building a high-performance NAS network, or deploying a virtualization cluster, this card delivers consistent, low-latency 10 Gigabit connectivity. The Intel 82599EN chipset offers broad hypervisor and NAS compatibility. On Proxmox VE and VMware ESXi, the card is natively detected with no additional configuration required. TrueNAS Scale and CORE users can expect plug-and-play operation straight out of the box. QNAP NAS running QuTS Hero recognizes the card immediately upon boot. For Windows environments, the Intel unified driver package covers Windows Server 2016 through 2022 and Windows 10/11 with straightforward installation. The SFP+ port supports Direct Attach Copper (DAC) cables, OM3/OM4 multimode fiber transceivers for runs up to 300 meters, and single-mode modules for longer distances. The card operates on just 4 PCIe lanes. Both full-height and low-profile brackets are included, making it compatible with standard ATX towers, 1U/2U rackmount servers, and compact Mini-ITX or mATX cases. The Intel 82599EN controller supports the IEEE 802.3ae 10GbE standard, hardware TCP/UDP checksum offload, and jumbo frames up to 9KB for efficient high-throughput workloads.

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