FebSmart
FebSmart PCIE x8 Interface to 2X 10GbE SFP+ Optical Port Network Adapter for Desktop PC
Bottom line: The PCIE x8 Interface to 2X 10GbE SFP+ Optical Port Network Adapter is a specs-and-price decision rather than a crowd-consensus one in the networking category, priced around $55.99 on Amazon as of 2026-10-06. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.
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*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Backed by FebSmart's warranty and support channels
Cons
- ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
SpecPicks Verdict
SpecPicks scored PCIE x8 Interface to 2X 10GbE SFP+ Optical Port Network Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the networking category. FebSmart's networking lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for networking of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- 1. FebSmart X520-DA2 is a PCIE 2.0 x8 interface to 2x 10GbE SFP+ optical port network adapter. It is powered by the Intel 82599ES 2x 10Gb/s Ethernet controller, delivers stable 10Gb/s LAN and SAN connectivity for Windows desktops, Windows servers, NAS, Linux PCs, and Data centers, making it ideal for virtualization and storage-intensive environments.
- 2.Major Chipset: Intel 82599ES 2x 10Gb/s Ethernet Controller; Network Interface: 10GbE SFP+ Port; Media Type: 10GbE SFP+ Transceivers, DAC and AOC Cables; Network Speed: 10GbE & 1GbE; Network Protocol: LAN & SAN; Host Interface: PCIE 2.0 x8 Interface, 40Gbps Total Bandwidth; Optical Transceiver Speed: 10GbE; DAC and AOC Speed: 10GbE.
- 3. Support IEEE 802.3ae 10GbE and IEEE 802.1z 1GbE; Support IEEE 1588; Support Intel Data Direct I/O Technology; Support Intelligent Offloads; Support Storage Over Ethernet; Support Intel Virtualization Technology for Connectivity include VMDq & SR-IOV; Support On-chip QoS and Traffic Management and Flexible Port Partitioning (FPP); Support Fiber Channel over Ethernet (FCoE); Support Pre-boot Execution Environment (PXE).
- 4. Comply with Open Fabrics Enterprise Distribution (OFED) and Open Fabrics Windows Distribution (WinOF-2). X520 DA2 must be used with 10GbE SFP+ transceivers paired with LC fiber cables or directly with 10GbE SFP+ AOC and DAC cables. Compliant with PCIE 2.0 standards, delivering 5 GT/s per lane. PCIE x8 interface provides 40 Gbps of bandwidth, enabling full-duplex 10Gb/s Ethernet connections for both transmit and receive paths.
- 5. Need to Install driver on Windows 11, 10, 8.x, 7 32/64bit, Driver Free on Windows Server 2012, 2012R2, 2016, 2019, 2022. Linux need to install IXGBE driver. Support RHEL 9.3-9.4, 8.9-8.10, 9.0 - 9.2, 8.0 - 8.8. SLES 12 SP5, SLES 12 SP4, SLES 15 SP5, SLES 15 SP4 and previous; Support Ubuntu 22.04 LTS, 20.04 LTS and Debian 11; Support Free BSD 14.0~13.3, 13.1 - 13.2, 12.0 - 12.3; Support all VMWare ESXI editions.
- 6. ATTENTION: 1. PCIE x8 interface, works on PCIE x8, x16 slot. 2. Low profile bracket in the package and full height bracket mounted on X520-DA2 network adapter. Compatible with standard size PCs and low-profile PCs.
Full Specifications
| Brand | FebSmart |
|---|---|
| Color | Matte Green |
| Unit Count | 1.0 Count |
| Model Number | X520-DA2 |
| Compatibility | PC, Linux |
| Built-In Media | 1X X520-DA2, 1X Low Profile Bracket, 1X User Manual, 1X Mount Screw, 1X Mini CD. |
| Mfr Part Number | X520-DA2 |
| Number of Packs | 1 |
| Compatible Devices | Desktop |
| Data Link Protocol | Ethernet, IEEE 802.3 |
| Data Transfer Rate | 10 Gigabits Per Second |
| Hardware Interface | Ethernet, PCIE x 8 |
| Item Dimensions L x W x H | 4.72"L x 4.53"W x 0.72"H |
| Full listing title | PCIE x8 Interface to 2X 10GbE SFP+ Optical Port Network Adapter for Desktop PC, Intel 82599ES 2X 10Gb/s Ethernet Controller, 10GbE PCIE NIC Card for Gaming, 10Gb/s SFP+ PCIE LAN Adapter (X520-DA2) |
Ready to buy?
PCIE x8 Interface to 2X 10GbE SFP+ Optical Port Network Adapter for Desktop PC, Intel 82599ES 2X 10Gb/s Ethernet Controller, 10GbE PCIE NIC Card for Gaming, 10Gb/s SFP+ PCIE LAN Adapter (X520-DA2) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
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