H!Fiber.com
H!Fiber.com H!Fiber 10Gb SFP+ PCI-E Network Card NIC
Bottom line: The H!Fiber.com H!Fiber 10Gb SFP+ PCI-E Network Card NIC: Original Intel 82599ES controller, same silicon as the Intel X520-DA2 (E10G42BTDA); main trade-off: will not negotiate 1 Gbps links, so it needs 10G switch ports or DAC runs.
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Pros & Cons
Pros
- ✓ Original Intel 82599ES controller, same silicon as the Intel X520-DA2 (E10G42BTDA)
- ✓ Dual SFP+ ports hit 10 Gbps each, 10x standard Gigabit adapters
- ✓ Broad OS support: Windows Server 2008-2019, RHEL/CentOS 6-8, Ubuntu 16-20, ESXi 6/7, FreeBSD 10-12
- ✓ Ships with full-height and low-profile brackets for standard or slim chassis
- ✓ 3-year warranty plus 30-day returns and lifetime tech support
Cons
- ✗ Will not negotiate 1 Gbps links, so it needs 10G switch ports or DAC runs
- ✗ No macOS support and no bypass mode listed
- ✗ Windows 11 requires manually forcing the Windows 10 driver during install
- ✗ PCIe 2.0 x8 electrical, so it needs a free x8 or x16 slot, not x1 or x4
SpecPicks Verdict
SpecPicks scored H!Fiber.com H!Fiber 10Gb SFP+ PCI-E Network Card NIC using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. H!Fiber.com's expansion cards 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 expansion cards 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
- Widely Compatible OS: Windows 7/8/10, Windows Server 2008/2012/2016/2019, Centos/RHEL 6/7/8, Ubuntu 16/18/19/20, Debian 9/10/11,FreeBSD 10/11/12, Vmware Esxi 6/7, SLSE 11/12. (Windows os is not support SFP-LX, QNAP QSW-308-Series Switch. Not support Mac OS and Bypass Mode) (Only by setting up Windows 10 driver correctly the NIC can work on Windows 11! Please see the main picture or video for more detail of installation.)
- NIC Controller: 10Gb Network Card equipped with original Intel 82599ES Controller, which supports Quality-of-Service (QoS) technology to streamline your online experience and ensure stability; Compare to Intel X520-DA2(Intel E10G42BTDA)
- SFP+ PCI-E NIC: 10Gb Dual SFP+ Ports support 10G SFP+ module/ DAC /AOC Cable, offer a dramatic 10x speed increase over standard Gigabit adapters, reaching speeds of up to 10 Gbps; (Not compatible with 1 Gbps.) PCI Express 2.0. 5.0 G T/s X8 Lane, compatible with PCIE X8, X16 Slot
- Easy to install: 10G NIC is packed with Both Full-height Bracket and Low Profile Bracket that support on Standard and Slim computer/server; Download operating systems driver from intel website or scan the QR code on the network card immediately
- Friendly Customer Service: Provides 24/7 Customer Service, 30 Days Free-returned, 3 Year Free Warranty and Lifetime Technology Support
Full Specifications
| Brand | H!Fiber.com |
|---|---|
| Color | X520-10G-2S(2xSFP+) |
| Weight | 10g |
| Unit Count | 1 Count |
| Model Number | X520-DA2-1pc |
| Compatibility | Switch, Mac, Linux |
| Built-In Media | 2 x SFP+ |
| Mfr Part Number | X520-10G-2S |
| Number of Items | 1 |
| Data Link Protocol | Ethernet |
| Data Transfer Rate | 10 gigabits_per_second |
| Hardware Interface | PCI Express x8 |
| Warranty Description | 3 Year Manufacturer |
| Friendly Customer Service | Provides 24/7 Customer Service, 30 Days Free-returned, 3 Year Free Warranty and Lifetime Technology Support |
| Full listing title | H!Fiber 10Gb SFP+ PCI-E Network Card NIC, with Intel 82599ES Chip, Dual SFP+ Ports, Compare to Intel X520-DA2 (E10G42BTDA), PCIe X8, Ethernet LAN Network Adapter Support Windows/Linux/VMware |
Ready to buy?
H!Fiber 10Gb SFP+ PCI-E Network Card NIC, with Intel 82599ES Chip, Dual SFP+ Ports, Compare to Intel X520-DA2 (E10G42BTDA), PCIe X8, Ethernet LAN Network Adapter Support Windows/Linux/VMware 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.
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