This article covers Intel E10GSFPSR 10G SFP+ SR SFP.

Overview

The Intel E10GSFPSR is a single-port 10 Gigabit SFP+ network adapter designed for servers and high-end workstations. It comes bundled with an SFP+ SR optical transceiver compatible with the X520-DA2, making it an accessible entry point into 10GbE networking for data centers, NAS environments, and home labs. This adapter uses a PCIe 2.0 x8 interface, allowing easy installation into existing servers or PCs. With 10Gbps bandwidth, it dramatically reduces transfer times for large files and alleviates network bottlenecks in virtualized environments. The Intel chipset ensures broad driver support and rock-solid stability.

Connectivity & Compatibility

Interface: PCIe 2.0 x8 (compatible with x16 slots; avoid x4 or narrower slots due to bandwidth limitations) Included SFP+ SR transceiver supports multi-mode fiber (MMF) with LC connectors, reaching up to 300 meters OS support: Windows Server, Linux, FreeBSD, and others with Intel official drivers Single-port design — for redundancy or link aggregation, multiple cards are required

Product Info

The Intel E10GSFPSR sits in the mid-to-high-end server NIC segment, offering 10GbE connectivity at a surprisingly affordable price point. It has been on the market since around 2015 and remains widely available. Price: Approximately ¥4,000 on — very competitive for a 10GbE adapter Warranty: Standard Intel warranty (typically 1–3 years; confirm with seller) Accessories: Includes only the SFP+ SR transceiver; no low-profile bracket or driver disk Availability: and various PC parts retailers; used units are common

Best Use Cases

NAS / file server operators: Upgrade from Gigabit to 10GbE for dramatically faster large-file transfers. Ideal for users who already have a 10GbE switch and fiber cabling. Not suitable if you need multiple ports on a single card. IT engineers building virtualized environments: The Intel chipset offers excellent compatibility with VMware and Hyper-V, providing stable network throughput for multiple VMs. A solid choice for homelab or production setups. * Home lab enthusiasts: Affordable entry into 10GbE networking. Used units are easy to find, making it a budget-friendly option. However, the single-port limitation may require multiple cards for advanced configurations.

Things to Consider

Single-port only — if you need dual ports, consider the Intel X520-DA2 instead. The included SFP+ SR transceiver is for multi-mode fiber only. For single-mode fiber or DAC cables, purchase a compatible transceiver separately. PCIe 2.0 x8 is sufficient for 10Gbps throughput, but if you plan to upgrade to 25GbE or higher in the future, a PCIe 3.0 or newer card would be more future-proof. No low-profile bracket included — you may need to buy one separately for small-form-factor chassis. * When buying used, verify the transceiver is included and the card is fully functional. ## FAQ
Q: Can I use this card in a regular desktop PC? A: Yes, as long as you have a free PCIe x8 or wider slot. Driver installation is required; Windows 10/11 work but official support is primarily for Windows Server. Q: What fiber cable works with the included SFP+ SR transceiver? A: LC connector multi-mode fiber (OM3/OM4) with a maximum distance of 300 meters. For single-mode fiber or DAC cables, you'll need a different transceiver. Q: How does this differ from the Intel X520-DA2? A: The X520-DA2 has two SFP+ ports (dual-port), while the E10GSFPSR has one. The bundled transceiver is compatible with both. Performance per port is identical.

Product Disclosure (Amazon)

  • Manufacturer: インテル
  • Seller: Wadoh Store【適格請求書発行事業者】
  • Fulfilled by: Amazon
  • ASIN: B016YK9CPI
  • Note: This article covers a manufacturer-made product based on Amazon listing details.