X-MEDIA XM-NA6821 PCI-E 2-Port 10Gbps Gigabit Ethernet PCI Express (PCIe x8) Server Network Adapter Card | Intel X540-T2 Chipset | Windows 11 & Linux Supported
Bottom line: The X-MEDIA XM-NA6821 PCI-E 2-Port 10Gbps Gigabit Ethernet PCI Express is a specs-and-price decision rather than a crowd-consensus one in the expansion cards category, priced around $69.99 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.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Standards: IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.3bz, 802.3an
- ✓ Backed by X-MEDIA's warranty and support channels
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated
Manufacturer description
This XM-NA6821 with Intel X540-T2 controller chipset, dual 10Gbps Gigabit Ethernet PCI Express card, it is a high-performance Multi-Gigabit Ethernet card that supports the 10GBASE-T/5GBASE-T/2.5GBASE-T/1000BASE-T/100BASE-T. This Adapter supports six speeds: 100Mbps and 1G/2.5G/5G/10G. Both Full/Low profile bracket are included, suitable for all PCs.
SpecPicks Verdict
SpecPicks scored X-MEDIA XM-NA6821 PCI-E 2-Port 10Gbps Gigabit Ethernet PCI Express… using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. X-MEDIA'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
- Standards: IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.3bz, 802.3an
- Data Transfer Rate: 100Mbps/1G/2.5G/5G/10G (2-Ports)
- BUS: PCI Express (PCIe x8); LEDs: ACT/Link
- Standard / Low Profile Bracket Included
- Supported OS: Windows 7 / 8 / 8.1 / 10 / 11(32/64-bit); Linux; FreeBSD 11 or later; VMWare ESXi; Windows Server 2008 / 2012 / 2016
Full Specifications
| BUS | PCI Express (PCIe x8); LEDs: ACT/Link |
|---|---|
| Brand | X-MEDIA |
| Color | Green |
| Weight | 1g |
| Standards | IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.3bz, 802.3an |
| Model Number | XM-NA6821 |
| Supported OS | Windows 7 / 8 / 8.1 / 10 / 11(32/64-bit); Linux; FreeBSD 11 or later; VMWare ESXi; Windows Server 2008 / 2012 / 2016 |
| Compatibility | Linux |
| Built-In Media | CD Driver Disk w/User Guide, Low Profile Bracket, XM-NA6821 2-Port 10GbE PCIe x8 NIC |
| Mfr Part Number | XM-NA6821 |
| Compatible Devices | Laptop, Desktop |
| Data Link Protocol | Gigabit Ethernet |
| Data Transfer Rate | 10 Gigabits Per Second |
| Hardware Interface | Ethernet, PCI Express x8 |
| Item Dimensions L x W x H | 5.5"L x 2.75"W x 0.75"H |
Ready to buy?
X-MEDIA XM-NA6821 PCI-E 2-Port 10Gbps Gigabit Ethernet PCI Express (PCIe x8) Server Network Adapter Card | Intel X540-T2 Chipset | Windows 11 & Linux Supported 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.
Related Expansion Cards
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- How to Build a Windows 98 Retro PC in 2026
- Best Retro Handhelds in 2026 — From $35 to $500
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best 1440p Gaming GPUs in 2026
More reviews from the SpecPicks archive
Browse all reviews →- Self-Host Immich Photo Backup on a Raspberry Pi 4 8GB in 2026
- Logitech G502 Hero vs Modern FPS Mice: Is the Classic Still Worth It in 2026?
- Modern PC Builds vs Period-Correct Retro Rigs: A 2026 Comparison
- Best GPU for ComfyUI and SDXL Under $400 in 2026
- Can the RTX 3060 12GB Still Game at 1440p in 2026?
- GeForce 4 Ti 4200 AGP: The Best-Value Retro GPU for a 2002 Windows XP Build
- RTX 5090 AI TOPS: What the Official Number Means
- Samsung 1440p 240Hz Gaming Monitor Drops to $169 — 32% Off
- Ryzen 5 5600G vs RTX 3060 12GB for Entry Local LLM Inference (2026)
- Best Budget 1TB SATA SSD 2026: BX500 vs WD Blue vs SanDisk Ultra 3D vs Samsung 870 EVO
- Quiet RTX 3060 12GB Local LLM Box: Build Notes from a Real Setup
- Frontier Models Cheat on Security Tests: Why You Should Eval Locally
- Revive a Dead Payphone with a Raspberry Pi Zero 2 W: Full Build Walkthrough
- Fine-Tune Video and Image Models at Scale: NeMo vs Diffusers
- Troubleshooting Voodoo 5 5500 PCI Driver Hangs on Windows 98 SE: Field Guide
- Ryzen 7 5800X vs 5800X3D for 1440p Gaming: Which Should You Buy?
- KDE KWin Gaming Patches 2026: Linux Latency vs Windows
- Best Gaming Mouse Pad for Esports FPS in 2026
- Old RAM Identification: Decode Part Numbers & Specs
- Best Webcam for PC Game Streaming Under $100 (2026)
- How Fast Is Local LLM Inference on a Ryzen 7 5800X (CPU-Only, No GPU)?
- Local AI Server LLM Setups 2025: What Hardware Matters
- Best Raspberry Pi Alternative in 2026: Pi vs Orange Pi vs Radxa
- Mystery N64 Cartridge Found in the Woods Boots Up
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090