--- description: QNAP has announced the release of their newest network interface cards, the dual-port 25GbE QXG-25G2SF-CX4 and 10GbE QXG-10G2SF-CX4. When installed in a... title: QNAP 25GbE QXG-25G2SF-CX4 & 10GbE QXG-10G2SF-CX4 NICs Now Available image: https://www.storagereview.com/wp-content/uploads/2019/02/QXG-10G2SF-CX4-thumb.png --- [![Storage Review]()](https://storagereview.com/) --- [Facebook](https://www.facebook.com/@storagereview) [X (Twitter)](https://twitter.twitter.com/storagereview) [Instagram](https://www.instagram.com/storagereview/) [LinkedIn](https://www.linkedin.com/company/storagereview-com) [YouTube](https://www.youtube.com/user/storagereview?sub_confirmation=1) [Email](mailto:info@storagereview.com) [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0) [Reddit](https://www.reddit.com/r/StorageReview/) [Discord](https://discord.gg/TwMHb4azdC) [RSS Feed](https://www.storagereview.com/rss.xml) [TikTok](https://www.tiktok.com/@storagereview) [Facebook](https://www.facebook.com/@storagereview) [X (Twitter)](https://twitter.com/storagereview) [Instagram](https://www.instagram.com/storagereview/) [LinkedIn](https://www.linkedin.com/company/storagereview-com) [YouTube](https://www.youtube.com/user/storagereview?sub_confirmation=1) [Email](mailto:info@storagereview.com) [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0) [Reddit](https://www.reddit.com/r/StorageReview/) [Discord](https://discord.gg/TwMHb4azdC) [RSS Feed](https://www.storagereview.com/rss.xml) [TikTok](https://www.tiktok.com/@storagereview) [![StorageReview.com](https://www.storagereview.com/wp-content/uploads/2026/07/Storage-Review-2x.png)](https://www.storagereview.com) ≡ Menu - [Home](https://www.storagereview.com/) - [Storage Reviews](https://www.storagereview.com/review) - [End User Reviews](https://www.storagereview.com/consumer) - [Enterprise Reviews](https://www.storagereview.com/enterprise) - [Ubiquiti Reviews](https://www.storagereview.com/best/ubiquiti-reviews) - [SR Merch](https://store.storagereview.com) - [Leaderboards](https://www.storagereview.com/best) - [Best Storage Arrays](https://www.storagereview.com/best/storage-arrays) - [Best Enterprise SSDs](https://www.storagereview.com/best/enterprise-ssds) - [Best Servers](https://www.storagereview.com/best/servers) - [Best Enterprise GPUs](https://www.storagereview.com/best/enterprise-gpus) - [Best Desktops for Local AI](https://www.storagereview.com/best/desktops-local-ai) - [Best Laptops for Local AI](https://www.storagereview.com/best/laptops-local-ai) - [Best Local LLM Tools](https://www.storagereview.com/best/local-llm-tools) - [Agentic AI Hardware](https://www.storagereview.com/best/agentic-ai-hardware) - [Best SSDs & Hard Drives](https://www.storagereview.com/best_drives) - [Best Portable SSDs](https://www.storagereview.com/best/portable-ssds) - [Best Business Laptops](https://www.storagereview.com/best/business-laptops) - [Best Mobile Workstations](https://www.storagereview.com/best/mobile-workstations) - [Best Desktop Workstations](https://www.storagereview.com/best/desktop-workstations) - [Best Mini PCs](https://www.storagereview.com/best/mini-pcs) - [Best Laptop Battery Life](https://www.storagereview.com/best/laptop-battery-life) - [Storage Reference Guide](https://www.storagereview.com/storage-reference-guide) - [About SR](https://www.storagereview.com/about-storagereview) - [StorageReview.com Sweepstakes Rules and Regulations](https://www.storagereview.com/storagereview-com-sweepstakes-rules-and-regulations) Search [Home](https://www.storagereview.com/) » [News](https://www.storagereview.com/news) » QNAP 25GbE QXG-25G2SF-CX4 & 10GbE QXG-10G2SF-CX4 NICs Now Available # QNAP 25GbE QXG-25G2SF-CX4 & 10GbE QXG-10G2SF-CX4 NICs Now Available by Lyle Smith on February 25, 2019 QNAP has announced the release of their newest network interface cards, the dual-port 25GbE QXG-25G2SF-CX4 and 10GbE QXG-10G2SF-CX4. When installed in a server-grade PC, the new QNAP NICs are expected to significantly improve workflows in offices and homes. As far as components go, both cards are equipped with a Mellanox ConnectX-4 Lx SmartNIC controller and support iSER (iSCSI Extension for RDMA) to help improve VMware virtualization. The NICs support the PCIe Gen3 x8 interface and can be installed on Windows or Linux PCs as well as inside compatible QNAP NAS solutions.     ![](https://www.storagereview.com/wp-content/uploads/2019/02/QXG-10G2SF-CX4_Top.png)  With their 25GbE and 10GbE connectivity (coupled with iSER support), QNAP states that the QXG-25G2SF-CX4 and QXG-10G2SF-CX4 are an ideal solution for those who have high-speed requirements. They are also designed to perform particularly well in higher-end NAS solution due to their fast throughput capabilities in data transmission, backup/restoration, SSD-based applications, and VMware applications. **Key specifications** - QXG-25G2SF-CX4: Dual-port 25GbE SFP28 network expansion card - QXG-10G2SF-CX4: Dual-port 10GbE SFP+ network expansion card - Mellanox ConnectX-4 Lx controller; PCI Express Gen3 x8, low-profile, full-height and specialized brackets (for designated QNAP NAS) included in the package. **Availability** The QXG-25G2SF-CX4 and QXG-10G2SF-CX4 NICs are available now.  [QNAP NIC mellanox](https://www.qnap.com/en-us/product/nic-mellanox) [Discuss This Story](http://forums.storagereview.com/index.php?/topic/41604-qnap-25gbe-qxg-25g2sf-cx4-10gbe-qxg-10g2sf-cx4-nics-now-available/) [Sign up for the StorageReview newsletter](https://www.storagereview.com/storagereview_newsletter_signup) **Engage with StorageReview** [Newsletter](https://www.storagereview.com/storage_newsletter) |  [YouTube](https://www.youtube.com/user/StorageReview "Opens in a new window") | Podcast  [iTunes](https://podcasts.apple.com/gb/podcast/storagereview-com-storage-reviews/id1060681115 "Opens in a new window")/ [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0 "Opens in a new window") |  [Instagram](https://www.instagram.com/storagereview/ "Opens in a new window") |  [Twitter](https://twitter.com/storagereview "Opens in a new window") |  [TikTok](https://www.tiktok.com/@storagereview? "Opens in a new window") |  [RSS Feed](https://www.storagereview.com/rss.xml) ![]() ### Lyle Smith Lyle is a writer for StorageReview, covering a broad set of end user and enterprise IT topics. 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